Reagent Recipes, Biology Stockroom- CSU, Chico
Stockroom Recipes
Welcome. You are visitor #
since October 15, 1997
These recipes were collected over the course of many
years by various stockroom technicians (therefore I can take no
credit or responsibility for their accuracy or lack thereof).
For each recipe there are surely other ways of making them and/or
other formulations. Some are actually formulas concocted by our
faculty for their own research needs.
There are many duplications in this list (ie. rat ringers is also
listed as ringers, rat etc.) as I have intended it to be easily
downloaded and printed to a card type file with cross references.
This is most easily done by "searching" for the ******* lines
and "replacing" with a page break. The resulting pages should
fit easily on a 4x6 cards.
Should you wish to add or correct errors in this list
please e-mail your recipe or correction to me, at bmcnulty(at)csuchico(dot)edu
and I will incorporate it/them into our list with the appropriate
acknowledgements (if desired).
BEFORE MIXING ANY REAGENT
YOU SHOULD UNDERSTAND THE
PROPERTIES OF ALL OF THE
CHEMICALS INVOLVED.
Consult your MSDS, Merk Index, CRC etc. before mixing any reagent.
The Biology Department, California State University Chico,
and most important, Myself.... assume NO responsibility for
the outcome of mixing any of these reagents !!!!!
Now on with the list
To avoid laborious scrolling click on the desired location in
the alphabet below.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
A's
2-4 - Dichlorophenoxyacetic acid (2-4-D)
Mix dry reagent in a small amount of 95% ethanol.
Place this solution in a warming plate 32 deg C and add
prewarmed water slowly with swirling until desired
concentration is reached.
****************************************************************
5% Ammoniacal Silver Nitrate
Add concentrated ammonium hydroxide to 5% silver nitrate
until resulting precipitate again dissolves.
****************************************************************
A.F.A. , Botanical
115 ml Formalin
115 ml Glacial acetic acid
805 ml 95% Ethanol
805 ml Distilled water
****************************************************************
ACD used for blood
1.32 gm Na Citrate
0.48 gm Citric Acid
1.47 gm Dextrose
100 mls Distilled water
Use 0.25 ml/ml of blood
****************************************************************
ACETIC ACID - DILUTIONS
172 MLS 3N
57.3 mls 1N
1.046 mls 0.02N
Bring to a final volume of 1 Liter.
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Aceto Carmine Stain ( Stern)
45 ml Glacial acetic acid
55 ml water
0.5 gm Carmine
Heat the 45% acetic acid solution to boiling. Add the 0.5gm
Carmine and continue heating for several minutes with
stirring. Filter and cool.
****************************************************************
ACETO-CARMINE (BELLING'S)
STOCK 1
55 ml Distilled water
45 ml Acetic acid
5.0 gms Carmine
STOCK 2
55 ml Distilled water
45 ml Acetic Acid
5 gms Ferric oxide
(iron acetate)
Boil stock solution 1 for 15 minutes, cool and filter
To 50 mls of stock 1 add stock 2 until pcpt just appears
then quickly add 50 ml more of stock 1
***for most purposes omit stock solution 2 and just use
stock solution 1.
****************************************************************
ACETO-CARMINE (chromosome stain for drosophila)
1. Weigh sufficient solid Carmin or Orcein, or Lacmoid to
make a 2% solution.
2. Place the stain with the appropriate volume of 45%
acetic acid in a flask with a vertical condensor.
3. Reflux all day, glass beads or pumice will help to
prevent bumping.
4. Allow to cool and filter.
****************************************************************
ACETOCARMINE
Stock sol'n - Boil and excess (aprox 0.5g/100 ml) of carmine
in 45% acetic acid (aq) 2-4 minutes. Cool and filter.
Working sol'n. Dilute stock sol'n with 45% acetic acid 1:2.
An iron mordanted stain often is favored because of darker
bluish tinged red. Belling added a few drops of 50% ferric
hydrate in 50% acetic acid, but only a few drops!
Too much iron will produce a pcpt in a short time.
Moree(1944) determined quantatively the amount of ferric
chloride to add and includes volumes tables
Moree, r. 1944 Stain tech 9:103-108
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ACETIC ALCOHOL
100 mls Ethanol anhydrous
33 ml Glacial Acetic Acid
****************************************************************
ACID ALCOHOL
50 ml 35% Ethanol
3 drops HCl (con)
****************************************************************
ACID ALCOHOL FOR GLASSWARE CLEANING
100ml 70% Ethanol
5 ml HCl
****************************************************************
ACID CLEANING SOLUTION
120 gms Na Dichromate
1 Liter Tap Water
1.6 Liters Con Sulfuric
Dissolve chromate in water. Add acid with swirling. Be
sure to surround mixing vessel with ice bath.
****************************************************************
Acid cleaning solution 1
120 gm Na dichromate
1000 ml tap water
1600 ml sulfuric acid
Dissolve chromate in water. Add acid with swirling. Be
sure to surround mixing vessel with ice bath.
****************************************************************
ACID CLEANING SOLUTION 2
120 gm Potassium Dichromate
600 mls water
920 mls Con Sulfuric Acid
Dissolve chromate in water. Add acid with swirling. Be
sure to surround mixing vessel with ice bath.
****************************************************************
Acid cleaning solution 2
120 gm Potassium dichromate
600 ml water
920 ml sulfuric acid
Dissolve chromate in water. Add acid with swirling. Be
sure to surround mixing vessel with ice bath.
****************************************************************
AFA (ALEXANDER'S)
460 ML FORMALIN
1152 ML 95% ETHANOL
76 ML GLACIAL ACETIC ACID
2308 ML TAP WATER
****************************************************************
ALCOHOLIC BORAX CARMINE ( GRENACHER'S)
3 gm Carmine
4 gm Borax
100 ml distilled water
Boil until the carmine is dissolved (1/2 hr) or
better yet allow the mixture to stand at room temp
until dissolved.
Then add 70% ethanol (100 ml) and allow to stand
for a day or two then filter.
****************************************************************
ALEXANDER'S AFA
460 ML FORMALIN
1152 ML 95% ETHANOL
76 ML GLACIAL ACETIC ACID
2308 ML TAP WATER
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ALGAL PRESERVATIVE
8 parts 50% Ethanol
1 part 5% Formalin
1 part Glycerine
****************************************************************
Alizerine Red S for whole mount staining of bone
1 part alizerin red in 10,000 parts 1% - 2% KOH
Material is cleared in 2% KOH first.
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Alkaline - Iodine
NaOH 500 gm
or
KOH 700 gm
*******and**********
NaI 135 gm
or
KI 150 gm
dissolved in distilled water to make 1 Liter
(used for determining dissolved oxygen)
****************************************************************
Alkaline Alcohol
Add a few drops of 1.0% sodium bicarbonate to
70% Ethanol
****************************************************************
Alkaline Na I
Dissolve 40 gm of NaOH and 90 gm of NaI to make
100 ml of solution using distilled water.
****************************************************************
Alum Carmine (Grenacher's)
100 ml Distilled water
3 gm Aluminum ammonium
sulfate
1 gm Carmine
Combine and boil for 15 mon or until carmine is
dissolved. Cool and filter.
****************************************************************
Alum Cochineal
6 gm Potassium alum
6 gm powdered cochineal
90 ml distilled water
Boil for 1/2 hour. After the fluid has settled, decant
the supernatant liquid, add more water and boil it down
until only 90 mls remain. Filter when cool and add a
bit of thymol or a little salicylic acid to prevent
the growth of mold
****************************************************************
Aman's Lactophenol
20 ml melted phenol
20 ml Lactic acid
40 ml glycerine
21 ml distilled water
To 100 ml of the above add 5 ml of 1% aqueous Cotton Blue
or Acid Fuchsin.
****************************************************************
Aminonaphthal Sulfonic Acid
Grind 0.5 gm of 1-amino-2-naphthal-4-sulfonic acid
with 5 ml of sodium sulfite solution containing 1 gm
anhydrous sodium sulfite per 5 ml and disolve in 200 ml
sodium bisulfite solution containting 30 gm Na2S2O5 per
200 ml.
Keep in brown tightly stoppered bottle.
****************************************************************
Ammonium Hydroxide Concentrations
Reagent grade (58%) = 29.7 N
U.S.P. grade (28%) = 15 N
****************************************************************
Ammonium Potassium Oxalate
1.2 gm Ammonium oxalate
0.8 gm Potassium oxalate
100 ml distilled water
****************************************************************
Aqua Regia
1 part Nitric Acid
3 parts HCl
1 part distilled water
WARNING!!! IF YOU DON'S ADD THE WATER POISONOUS
CHLORINE GASS WILL FORM!!!!!!!!!!
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B's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Balsam in 100% Ethanol
1 part Balsam (solid)
1 part absolute ethanol
This takes at least 3 days to disolve so prepare in
advance.
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Barfoed's Solution
Place 4.5 gm crystalized neutral cupric acetate
in 100 ml of water, add 0.12 ml of 50% acetic acid.
****************************************************************
Baritt's Reagent test for acetylmethylcarbinol
5% solution of alpha naphthol in absolute ethyl
alcohol. 40% solution of potassium hydroxide.
0.3% creatin in 40% potassium hydroxide but ADD JUST BEFORE
USE. Stable for 2 weeks.
****************************************************************
Baryta Water
Add Barium Hydroxide plus a pinch of Barium Chloride to a
bottle fo distilled water until no more will go into
solution.
Filter and keep tightly stoppered.
****************************************************************
BELLING'S ACETO - CARMINE
STOCK 1
55 ml Distilled water
45 ml Acetic acid
5.0 gms Carmine
STOCK 2
55 ml Distilled water
45 ml Acetic Acid
5 gms Ferric oxide
(iron acetate)
Boil stock solution 1 for 15 minutes, cool and filter
To 50 mls of stock 1 add stock 2 until pcpt just appears
then quickly add 50 ml more of stock 1
***for most purposes omit stock solution 2 and just use
stock solution 1.
****************************************************************
Benedict's Reagent
173 gm Sodium Citrate
100 gm Sodium Carbonate
(anhydrous)
17.3 gm Copper Sulfate
to make
1 liter Distilled water
Dissolve sodium citrate and sodium carbonate in 800 ml
of distilled water. Filter and add copper sulfate
dissolved in 100 ml of distilled water.
Add distilled water to make 1 Liter.
****************************************************************
Benzidine Reagent
Make a saturated solution of benzidine in glacial acetic
acid.
Benzidine Test
Place a drop of blood in 3 ml of water. Add 2 ml of
saturated solution of benzidine in glacial acetic acid.
To this add 1 ml of 3% hydrogen peroxide.
****************************************************************
Berlese's Medium
10 ml water
3 ml glacial acetic acid
5 ml dextrose syrup
8 gm gum acacia
75 gm Chloral Hydrate
Mix water, acid, and syrup. Dissolve gum acacia in this
mixture (may take a week). Stir at intervals. Be careful
not to include any air bubbles. Afeter gum acacia is
dissolved, a;dd chloral hydrate.
****************************************************************
Biuret Reagent tried and true!!!!
3 gm CuSO4*5H2O
12 gm Potassium sodium
tartrate
600 ml 10% NaOH (aq)
Dissolve copper sulfate in 500 ml of distilled water, then
dissolve potassium sodium tartrate in this solution.
Boil 800 mls of distilled water, cool covered. Add the 600
mls of 10% NaOH to the cooled water.
Mix the two solutions and bring to 2 liters. Bottle in
PLASTIC BOTTLES.
****************************************************************
Biuret Reagent and Paper
Biuret Reagent is prepared by adding 25 ml of 3% Copper
Sulfate in 10% Potassium hydroxide.
Paper (Walkers modification)
Add 1% copper sulfate solution a drop at a time, with
stirring to a 40% solution of NaOH unitl the mixture
becomes a deep blue color. Then filter paper may be
immersed in the reagent, dried, and cut into strips for
use in tests for proteins.
****************************************************************
Blood Diluting Fluid (Gower's)
12.5 gm Sodium Sulfate
33.3 ml Glacial acetic acid
200 ml distilled water
****************************************************************
Borax Carmine, Alchohlic, Grenacher's
3 gm Carmine
4 gm Borax
100 ml distilled water
Boil until the carmine is dissolved (1/2 hr) or better
yet allow the mixture to stand at room temp until dissolved.
Then add 70% ethanol (100 ml) and allow to stand for a day
or two then filter.
****************************************************************
Botanical F.A.A.
115 ml Formalin
115 ml Glacial acetic acid
805 ml 95% Ethanol
805 ml Distilled water
****************************************************************
Bouin's Fixative (Alcoholic) Kistner
150 ml 90% Ethanol
60 ml Formalin
15 ml Glacial acetic acid
1 gm Picric Acid
****************************************************************
Bouin's Picro-Formol Fixative
75 parts saturated aq Picric
Acid
25 parts Formalin
5 parts Glacial acetic Acid
1 gm of picric acid will saturate about 75 mls of water.
****************************************************************
Bradford Protein Assay Dye Reagent
50 mg Coomassie Blue G250
100 ml 85% H3PO4
850 ml H2O
50 ml methyl alcohol
Mix commassie blue in methyl alcohol first. Then add this
to the phosphoric acid. Now add 500 mls of water, mix
and filter. Add and mix the remaining 350 mls of water
bottle and store in refrigerator.
****************************************************************
Brazil's Fixative
150 ml 80% Ethanol
1 gm Picric Acid
60 ml Formalin
15 ml Acetic acid ADD
JUST BEFORE USE
****************************************************************
Brodie's Manometer Fluid
23 gm NaCl
5 gm Sodium Choleate
500 ml distilled water
density = 1.033, Po = 10000
Evans blue (200mg/L) or acid fuchsin are excellent dyes
for the fluid; other dyes may be used, but some of these
tend to decompose in the manometer. Determine the density
of the solution with a pycnometer.
****************************************************************
Brom Cresol Purple - indicator for fermentation
1.6 gm Brom Cresol Purple
Mix BCP in dry morter with 18.5 ml of ).1N NaOH.
Dillute to 100 ml (Enough additional to completely disolve
the reagent)
****************************************************************
Brom Thymol Blue - indicator
0.1 gm Brom Thymol Blue
16.0 ml 0.01N NaOH
Mix in a mortar and then dillute to 250 ml.
Use 5 drops / 10 ml of solution being checked.
****************************************************************
Brom Thymol Blue - indicator
0.4 gm Brom Thymol Blue
500 ml 95% Ethanol
500 ml Distilled water
Dissolve the indicator in the alcohol. Add the distilled
water, stir and then filter through fast paper.
****************************************************************
Budding Yeast
Place a small portion of a yeast cake in malt extract broth
Incubate while shaking.
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Buffer Solutions of Clark and Lubs - Group 1
To 50 ml of a 0.2M KCl add the indicated number of mls of a
0.2N HCl solution and then diltue to 200mls with distilled
water.
INDICATOR: Thymol Blue
Buffer Solutions of Clark and Lubs - Group 2
To 50 ml of a 0.2M Potassium acid bi phthalate add the
indicated number of mls of 0.2N HCl and dilute to 200 ml
with distilled water
INDICATOR: Thymol blue and Brom Phenol blue
Buffer Solutions of Clark and Lubs - Group 3
To 50 ml of a 0.2M Potassium acid bi phthalate add the
add the indicated number of mls of 0.2N NaOH, and dilute
with distilled water to 200 ml.
INDICATORS: Brom cresol green, Brom phenol Blue, Brom
cresol purple
Buffer Solutions of Clark and Lubs - Group 4
To 50 ml of a 0.2M Acid Potassium phosphate add the
indicated number of ml of 0.2N NaOH and dillute to 200 ml.
INDICATORS: Brom thymom blue, Brom cresol blue, and Phenol
red.
Buffer Solutions of Clark and Lubs - Group 5
To 50 ml of 0.2N Boric acid in 0.2M KCl add the indicated
number of ml of 0.2N NaOH and diltue to 200 ml with
distilled water.
INDICATORS: Cresol red and thymol blue
****************************************************************
Buffer, Phosphate, Sorensen's
Stock solution a) = 9.08gm /1000ml water of KH2-PO4
b) = 9.47gm /1000ml water of Na2-HPO4
Combine the two stock solutions as indicated
****************************************************************
Buffer, Tris-Maleate
Dissolve 29 gm of maleic acid and 30.3 gm of
tris-hydroxymethyl aminomethane in 500 ml of water.
Add 2 g of Charcoal, shake and let stand for 10 min.
Filter. Mix 40 ml of this stock solution with the amount
of 1N NaOH indicated below and dillute to a final volume of
100 ml using water.
****************************************************************
C's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Carbol Methyl Green
1 gm Methyl green
5 gm Phenol or Carbolic
10 ml 95% ethanol
90 ml water
Put phenol in mixture o 10 ml alcohol and 60 ml of water.
Heat without boiling. Dissolve phenol with constant
stirring. Put methyl green in 30 ml of water and heat.
Pour dye solution into phenol solution (DO NOT REVERSE THIS!
Let stand overnight. Decant and filter.
****************************************************************
Carboxylene
Melt some Carbolic acid crystals (Phenol) over a low flame
(avoid breathing fumes). Mix one part acid to three parts
Xylene.
****************************************************************
Carl's Solution (FAA)
170 ml 95% ethanol
60 ml Formalin
20 ml Glacial acetic acid
280 ml water
Add the glacial acetic acid to the solution just
before using.
****************************************************************
Carmine, Alum, Grenacher's
100 ml distilled water
3 gm aluminum ammonium
sulfate
1 gm Carmine
Combine and boil for 15 min or until carmine is dissolved.
Cool and filter.
****************************************************************
Carmine, Semicon's
1 part glacial acetic acid
1 part water
Add carmine powder in excess of that which dissolves
immediately. Heat to 95-100 deg C for 15 min. Cool and
filter. Dilute filtrate eith equal partsw of 70% ethanol
****************************************************************
Carnoy's Fixative
6 parts 100 % ethanol
1 part glacial acetic acid
3 parts Chloroform
****************************************************************
Carnoy-LeBrun Fluid
30 ml 100% ethanol
30 ml glacial acetic acid
30 ml Chloroform
aprox 10gm Mercuric Chloride
Saturat mercuric chloride in the solution.
****************************************************************
Celestine Blue (Gray's)
Dissolve 2.5 gm iron alum in 100 ml of water with 14 ml
glycerine. Place 1 gm Celestine Blue B in a beaker. Tilt
the beaker and tap to accumulate the dye in one place. Pour
on 0.5 ml con sulfuric acid and mix with glass rod. When
the effervescence has ceased the dye will be in the form
of a friable mass. Break up this mass coursly and pour
on, with constant stirring, the soltuion of inom alum heated
to 50 deg C. Cool to room temp and adjust to pH 0.8 with
sulfuric acid. Allow to settle for several days and do not
stir when removing some stain for specimens.
****************************************************************
Cerophyl Infusion for Stock Culture
4.7 ml .1M Na2-HPO4
0.3 ml .1M NaH2-PO4
945 ml distilled water
50 ml ballanced salt sol'n
0.5 gm Cerophyl
Add cerophyl to about 200 ml of boiling water and boil for
3 min. Add remaining water, buffer and pour into
appropriate vessels.
BALANCED SALT SOLUTION =
distilled water 100 ml
NaCl 2.08 gm
MgSO4 0.08 gm
MgCl2 0.17 gm
CaCl2 0.02 gm
KCl 0.46 gm
****************************************************************
Chromate Cleaning Solution 1
120 gm Na dichromate
1000 ml tap water
1600 ml sulfuric acid
Dissolve chromate in water. Add acid with swirling. Be
sure to surround mixing vessel with ice bath.
****************************************************************
Chromate Cleaning Solution 2
120 gm Potassium dichromate
600 ml water
920 ml sulfuric acid
Dissolve chromate in water. Add acid with swirling. Be
sure to surround mixing vessel with ice bath.
****************************************************************
Chromate Starch
5 gm Potassium dichromate
1 gm soluable starch
100 ml water
Suspend the starch and the potassium dichromate in cold
water with stirring. Bring the mixture to a gentle boil
while stirring, cool.
****************************************************************
Chromatographic solvent, alkaline butanol sat HOH
80 ml n- butanol
20 ml amonium hydroxide
sp gr 0.90
100 ml water
Shake together vigorously and allow to stand.
****************************************************************
Chromosome stain for fruit fly salivary glands
1. Weigh sufficient solid Carmin or Orcein, or Lacmoid to
make a 2% solution.
2. Place the stain with the appropriate volume of 45%
acetic acid in a flask with a vertical condensor.
3. Reflux all day, glass beads or pumice will help to
prevent bumping.
4. Allow to cool and filter.
****************************************************************
Cleaning solution for blood diluting pipets
Pull the following solutions through the pipet in order.
Never let blood dry in the pipet
1. Dilute acetic acid (4-5 %)
2. tap water
3. Distilled water
4. Acetone
5. Air until enclosure bounces free
****************************************************************
Clearing Solution for leaves pg 1 of 2
A. Pre treatment
1. Dried - soak in water till material sinks.
2. Fresh - extract chlorophill - rinse in water.
B. Clearing
1. transfer tislsue to a vial of 5% aq solution of NaOH,
hydrolize and remove cytoplasimic material.
2. if delicate, clear at room temp, otherwise heat may be
used - 55 deg C. Replace with fresh NaOh when discolored
3. if not cleared in several days wash thoroughly in water
and soak in 10% clorox for 10 - 20 minutes.
****************************************************************
Clearing Solution for leaves pg 2 of 2
4. when tissue is milky white, wash thouroughly in HOH
C. Stainging
1. 1% analine blue in 95% ethanol
2. 1% safranin in 50% ethanol
3. 0.5% fast green in 100 % ethanol
4. 0.5% crystal violet in 100 % ethanol
****************************************************************
Cobalt Chloride weather paper
A piece of white blotting paper is immersed in a solution
containing two parts cobalt chloride to one part comon salt.
While wet the pater will remain pink, but when dried in the
sun or near a bunsen burner, it turns blue.
This is the basis of the weather pictures sold in the shops.
A homemade one works just as well. A picture containing
sky or water dcan be cut from a book and an inset of this
prepared blotting paper made to replace the sky. Mount the
picture on a card and hang near a window wher it will
quickly respond to changes in the hygrometric state of the
atmosphere.
****************************************************************
Colchicine Solution
0.0125 gm Colchicine
25 ml water
****************************************************************
Coliform test broth
10 gm Protease Peptone #3
1 gm Beef extract
5 gm Lactose
5 gm Sodium Chloride
18 mg Phenol red
1 liter water
****************************************************************
Cotton blue
20 ml carbolic acid
20 ml Lactic acid
40 ml glycerine
20 ml water
0.05 gm Cotton blue
****************************************************************
Crystral violet 1:1000
0.9 gm Crystal Violet
(85% dye content)
100 mls Water
****************************************************************
Cyanophycean Medium
5 gm KNO3
0.1 gm K2-HPO4
0.05 gm MgSO4*7HOH
10 drops 1% Ferric ammonium
citrate
The above should be added to 1000ml of distilled deionized
water.
This can be solidified by adding agar to reach a 1.5%
concentration and heating to dissolve it.
****************************************************************
D's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Dahl's Pollen Mounting Medium
16 parts 85% Lactic acid
2 parts N-Butyl alcohol
1 part 95% Ethanol
1 part Glacial Acetic Acid
1 part Glycerine
****************************************************************
Desicote
5 ml Beckman Desicote
95 ml Benzene (thiophene
free)
****************************************************************
Dichlorophenoxyacetic acid (2-4-D)
Mix dry reagent in a small amount of 95% ethanol.
Place this solution in a warming plate 32 deg C and add
prewarmed water slowly with swirling until desired
concentration is reached.
****************************************************************
Dichromate Cleaning Solution
120 gm Na Dichromate
1000 ml Water
1600 ml Con Sulfuric Acid
(technical grade)
****************************************************************
Digestive juice (synthetic)
7-10 ml con HCl
to 1 Liter Distilled water
6 gm Pepsin
****************************************************************
Dilution Fluid, Turk's
1 ml Glacial acetic acid
1 ml Gentian Violet
100 ml distilled water
Filter before use
****************************************************************
Dried Blood
Spread blood on glass plate. Dry in oven or in air.
When dry scrape into beaker.
****************************************************************
Drosophila Chromosome Stain #1
2 gm Synthetic Orcein
50 ml Glacial acetic acid
50 ml 85% Lactic acid
Dissolve Orcein in hot glacial acetic acid, remove from
heat and add the Lactic acid. Filter.
Drosophila Chromosome Stain #2
1 gm Synthetic Orcein
45 ml Glacial acetic acid
25 ml 85% Lactic acid
30 ml distilled water
Dissolve Orcein in hot glacial acetic acid, remove from
heat and add the water and Lactic acid. Filter.
****************************************************************
E's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Eosin (microtechnique)
0.5gm Eosin
100 ml 95% Ethanol
****************************************************************
Erlich Solution for Indol Test
1 gm Para dimethylamino
benzaldehyde
95 ml 95% ethanol
20 ml con HCl
Dissolve the powder in the alcohol. Then add the HCl and
mix well
****************************************************************
F's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
F.A.A. (Carl's Solution)
170 ml 95% ethanol
60 ml Formalin
20 ml Glacial acetic acid
280 ml water
Add the glacial acetic acid to the solution just
before using.
****************************************************************
F.A.A. Alexander's
120 ml Formalin
300 ml 95% Ethanol
20 ml Glacial acetic acid
600 ml tap water
****************************************************************
F.A.A., Lavdowsky's
20 ml Formalin
100 ml Ethanol
4 ml Glacial acetic acid
80 ml distilled water
****************************************************************
F.A.A., Botanical
115 ml Formalin
115 ml Glacial acetic acid
805 ml 95% Ethanol
805 ml Distilled water
****************************************************************
F.A.A., Smith's
90 ml 85% isopropanol
10 ml glacial acetic acid
10 ml Formalin
****************************************************************
Farmers fluid
3 parts 100% ethanol
1 part Glacial acetic acid
****************************************************************
Fixative, Navashin's
SOLUTION A
5 gm Chromic acid
50 ml Acetic acid
320 ml distilled water
SOLUTION B
200 ml formalin
175 ml distilled water
Mix equal parts of each solution just before use.
****************************************************************
Fixative, Transeau's
6 parts supernatant of sat
aq. CuSo4
3 parts 95% ethanol
1 part 40% aq. formalin
Used to preserve color in plants
****************************************************************
Formalin, Neutral buffered, Lillie's
100 ml formalin
900 ml distilled water
4 g NaH2-PO4
6.5 gm Na2-HPO4
****************************************************************
Frog Ringers
0.8 gm NaCl
0.02 gm CaCl2 anhydrous
0.02 gm KCl
0.02 gm NaHCO3
100 ml distilled water
** 0.1 gm Dextrose
** add only if requested and if requested add just before
use.
****************************************************************
FRUIT FLY MEDIA
37 GM BREWERS YEAST
150 GM CORN MEAL
35 GM AGAR
200 ML UNSULFURED MOLASSAS
3 GM MOLD INHIBITOR
(CAROLINA BIOLOGICAL
1900 ML DISTILLED WATER
Mix yeast, mold inhibitor, and agar with a little 95%
ethanol. Add some of the water to the corn meal to wet it
and then add all the ingredients to the remaining water.
While stirring constantly bring the mixture to a boil.
Dispense in 50 ml alaquats in 1 pint milk bottles.
****************************************************************
G's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Gastric Juice or enzyme
1-2 gm pepsin
100 ml 0.2% HCl
0.2% HCl = 6 ml con HCl in 1 liter of distilled water
****************************************************************
Geimsa Stain
Dissolve 0.5 gm of powder in 33 ml of glycerine at 55 to 66
deg. C overnight with stirring and heat. To this add 33 ml
of methyl alcohol.
WORKING DILLUTION =
1 ml of above stain to 25 ml of distilled water.
****************************************************************
Gentian Violen Stain
1 gm Gentian Violet
20 gm Ethanol
80 ml 5% Formalin
Dissolve the Gentian Violet in the alcohol then add the
formalin, mix and filter.
****************************************************************
Gilson's Mixture
15 ml Nitric acid sp =1.45
or 70-80 %
4 ml Glacial acetic acid
20 gm Mercuric chloride
100 ml 60% ethanol
880 ml distilled water
Can be heated to dissolve but let sit for a day or so to let
it pcppt out. Do not use metal probes as the mercuric
chloride eats metal and will cause specimen to stick to
probe.
Store in clear glass container.
****************************************************************
Glycerine Alcohol
90 parts 70% ethanol
10 parts Glycerine
****************************************************************
Glycerine Jelly
10 gm gelatin
60 ml distilled water
70 ml Glycerine
1 gm Phenol
Dissolve phenol in water then stir in the glycerine. When
miced, add gelatin and heat until dissolved. Transfer to a
widemouth jar and allow to cool.
****************************************************************
Glycerine Preservative for Kelp
3 parts Water
1 part Glycerine
10 gm/L Phenol
Add kelp, cleaned of sand and epiphytes, making sure they
are completly immersed (a weight may be added if necessary)
and preserve for about 10 days. Remove and dry on newapaper
10 - 14 days. Turn occasionally so that all portions will
be dry. Glycerine solution may be used several times.
****************************************************************
Gower's R-B-C
12.2 gm Sodium Sulfate
33.3 ml Glacial acetic acid
200 ml distilled water
****************************************************************
Grenacher's Alcoholic Borax Carmine
3 gm Carmine
4 gm Borax
100 ml distilled water
Boil until the carmine is dissolved (1/2 hr) or better yet
allow the mixture to stand at room temp until dissolved.
Then add 70% ethanol (100 ml) and allow to stand for a day
or two then filter
****************************************************************
Grenacher's Alum Carmine
100 ml distilled water
3 gm aluminum ammonium
sulfate
1 gm Carmine
Combine and boil for 15 min or until carmine is dissolved.
Cool and filter.
****************************************************************
H's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Hagerup's Fixative
1 part propionic acid
6 parts 100% ethanol
3 parts chloroform
****************************************************************
Harris' Alum Hematoxylin
0.5 gm Hematoxylin
20 gm Aluminum Ammonium
Sulfate
100 ml distilled water
0.5gm Mercuric Oxide
Boil the hematoxylin and ammonium alum together in distilled
water ( use a large container). Add the mercuric oxide
with care as there is a tendency for the solution to boil
up.
****************************************************************
Helly's Fluid
2.5 gm Potassium Dichromate
5.0 gm Mercuric Chloride
1.0 gm Sodium sulfate
100 ml distilled water
5 ml Formalin
****************************************************************
Hematoxylin, Harris'
0.5 gm Hematoxylin
20 gm Aluminum Ammonium
Sulfate
100 ml distilled water
0.5gm Mercuric Oxide
Boil the hematoxylin and ammonium alum together in distilled
water ( use a large container). Add the mercuric oxide
with care as there is a tendency for the solution to boil
up.
****************************************************************
Hematoxylin, Iron
2 solutions are used. They are not to be mixed.
1. Ferric alum (clear violet crystals) 2.5 gm (ferric
ammonium sulfate) is dissolved in 100 ml of distilled water.
2. 5 gm of Hematoxylin is dissolved in 1 liter of distilled
water and 100 ml of 95% ethanol.
****************************************************************
Holtfreter's Solution
0.35 gm NaCl
0.005 gm KCl
0.01gm CaCl2
0.02gm NaHCO3
100 ml distilled water
****************************************************************
Honey Peptone Agar
10 gm Peptone
60 gm Honey
15 gm agar
1 Liter distilled water
****************************************************************
Houpt's Adhesive
1 gm of plain Knox gelatin (or reagent gelatin) is
dissolved in 100 ml of water at 30 deg C. Add 2 gm phenol
and 15 ml of glycerine. Stir and filter (takes 24 hrs).
****************************************************************
Hoyer's Medium
25 ml water
15 gm Gum Arabic
10 ml Glycerine
100 gm Chloral hydrate
First add crystal of chloral hydrate the size of a pea to
prevent fungal growth. Then soak gum-water-pea of chloral
hydrate for 24 hrs. Then add 100 gm of chloral Hydrate and
wait until dissolved. This may take several days. After
everything is dissolved add glycerine.
****************************************************************
Hydrochloric acid dillutions
1 N 86 mls to volume of 1 liter
2 N 172 mls to volume of 1 liter
3 N 258 ml to volume of 1 liter
****************************************************************
HYDROCHLORIC ACID DILLUTIONS
3N 258ml/L 36%
****************************************************************
Hydroxide Sodium Iodide for Aquatic Analysis
Add 100 grams of NaOH and 27 grams of NaI to 1 liter of
water.
****************************************************************
I's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Indicator, Methyl Orange
0.5 gm Methyl orange
1 liter water
****************************************************************
Indicators, pH
Brom Cresol green; 0.4 gm BCG, 500 ml 95% ethanol, 500 ml
distilled water. Filter.
Cresol Red; Same procedure as above using 0.2gm cresol red
Thymol blue; Same as above using 0.5 gm of thymol blue
Phenolphthalein; 1.0 gm phenolphthalein in 50 ml of
95% ethanol and 50 ml of distilled water.
****************************************************************
Indol Acetic Acid in Lanolin
5 gm lanolin
2 mg IAA
Warm (do not boil) the lanolin in a small screw cap vial
until the lanolin just turns to liquid. Add the IAA and mix
thoroughly with a glass rod and allow to cool.
****************************************************************
Indol acetic acid solution
Indol acetic acid must first be dissolved in a small amount
of 95% ethanol before adding the appropriate amount of water
to reach the desired concentration
NOTE: IAA is unstable as a solution and bust be refrigerate
Even cold it will only be good for about 36 hours.
****************************************************************
Indol Test (Kobacs' Reagent)
75 ml Amyl alcohol
25 ml con HCl
5 gm paradimethylamino-
benzaldehyde
Should be made up in small quantities and stored in
refrigerator in clear glass stoppered bottles.
****************************************************************
Insect Saline
0.7% NaCl
0.2 ml 10% CaCl2
****************************************************************
Insect Saline (Hayome)
0.7% NaCl in distilled
water.
****************************************************************
Iodine - Reagent to devolatalize Iodine
0.8 gm NaOH
0.5 gm Sodium thiosulfate
0.3 gm Potassoum Iodide
to 1 liter distilled water
****************************************************************
Iodine solution (LUGOL'S)
50 gm Iodine
100 gm KI
to 1 liter distilled water
Mix I and KI in a mortar. Add distilled water in small
portions to wash out the contents into a graduated
cylinder.
****************************************************************
Iodine Solution (STOCK for starch)
35 gm KI
5 gm I
500 ml distilled water
for working dillution to use in starch test dilltue 1 part
stock with 2 parts water.
****************************************************************
K's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
K.A.S.A.
158 ml crude Kerosene
473.75 ml 95% isopropanol
105.25 ml glacial acetic acid
263 ml sec-butyl alcohol
Add sec-butyl alcohol last until solution clears
****************************************************************
Karpaenchenko's fixative (Taylor's modification)
1.5ml 10% aq chromic acid
10 ml 10% aq acetic acid
0.83 ml formalin
23.67 ml distilled water
****************************************************************
Knop's solution pH 7.6
1 gm MgSO4*7HOH
0.20 gm KH2-PO4
1.0 gm KNO3
1 gm Ca(NO3)2*4HOH
Add each of the above to 250 ml of distilled water then
combine to 1 liter adding Ca Nitrate last. Add 1 drop
of 1% ferric chloride (freshly prepared)
****************************************************************
Knops Solution (acid medium pH aprox 6.4)
0.25 gm MgSO4*7HOH
0.25 gm KH2-PO4
0.12 gm KCl
1.0 gm Ca(NO3)2*4HOH
Add each of the above to 250 ml of distilled water then
combine to 1 liter adding Ca Nitrate last. Add 1 drop
of 1% ferric chloride (freshly prepared)
****************************************************************
Kobacs' Reagent
75 ml Amyl alcohol
25 ml con HCl
5 gm paradimethylamino-
benzaldehyde
Should be made up in small quantities and stored in
refrigerator in clear glass stoppered bottles.
****************************************************************
Kovacs' Reagent - for indol test
75 ml Amyl alcohol
25 ml con HCl
5 gm Paradimethylamino-
benzaldehyde
Should be made up in small quantities and stored in refrig
in clear glass, stoppered bottles.
****************************************************************
Kreb's Manometer Fluid
44 gm NaBr anhydrous
0.3 gm Triton X-100
0.3 gm Evans blue
1 liter distilled water
Density = 1.033 at 20 deg C.
****************************************************************
Kymograph Shellac Solution
Dillute 1 volume of shellac with 2.5 volumes of 95% ethanol.
****************************************************************
L's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Lactophenol Mounting medium
1 part phenol crystals
1 part Lactic acid
1 part glycerine
1 part distilled water
Langeron's recipie calls for 2 parts glycerine to 1 part
of the other reagents.
****************************************************************
Lavdowsky's fixative
20 ml Formalin
100 ml Ethanol
4 ml Glacial acetic acid
80 ml distilled water
****************************************************************
Litmus solution
Add powdered litmus to distilled water to make a dark
blue solution
****************************************************************
Locke's Physiological Saline
9 gm NaCl
0.2 gm NaHCO3
0.42 gm KCl
0.25 gm CaCl2
2 gm dextrose
1000ml distilled water
Dissolve CaCl2 in a little of the water and add it to the
rest of the solution to prevent pcptation.
Add dextrose only if specified, and then at the last moment.
****************************************************************
Loeffler's methylene blue
0.3 gm Methylene blue
30 ml 95% ethanol
70 ml Dilute KOH (0.017%)
****************************************************************
LUGOL'S iodine solution
50 gm Iodine
100 gm KI
to 1 liter distilled water
Mix I and KI in a mortar. Add distilled water in small
portions to wash out the contents into a graduated
cylinder.
****************************************************************
M's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Maceration Fluid
1 part 10% Nitric acid
1 part 10% Chromic acid
(chromic trioxide)
Boil material 1 min in water. Pour off water add acid, stir
with glass rod and check at intervals until it begins to
seperate. Pour off acid, put in white silk scarf or
handkerchief and rinse with water for 12 hours. Drain
off water and cover with 5 volumes of 70% ethanol.
****************************************************************
Mallory's Triple stain
First Stain Solution; 1% acid fuchsin
Differentiating Moderating solution; 1% Phosphotungstinic
acid.
Second Staining Solution;
100 ml water
0.5 gm Analine blue
2.0 gm Orange G
2 gm Oxalic Acid
****************************************************************
Manometer Fluid, Brodie's
23 gm NaCl
5 gm Sodium Choleate
500 ml distilled water
density = 1.033, Po = 10000
Evans blue (200mg/L) or acid fuchsin are excellent dyes
for the fluid; other dyes may be used, but some of these
tend to decompose in the manometer. Determine the density
of the solution with a pycnometer.
****************************************************************
Manometer Fluid, Kreb's
44 gm NaBr anhydrous
0.3 gm Triton X-100
0.3 gm Evans blue
1 liter distilled water
Density = 1.033 at 20 deg C.
****************************************************************
Mayer's Paracarmine
1 gm Carminic acid
0.5 gm Al chloride
4.0 gm CaCl2
100 ml 70% ethanol
****************************************************************
Melzer's Reagent
1.5 gm KI
5 gm I
20 ml water
20 gm Chloral Hydrate
****************************************************************
Methocel
2.5-3 gm Methocel
90 ml distilled water
Mic methocel with the 90 ml of Hot not boiling water. Cool
to 5 deg C (in refrigerator). It should be transparent when
finished.
****************************************************************
Methyl Green
1 gm Methyl green
1 ml glacial acetic acid
99 ml water
Dissolve satin in acid and dilute with water
****************************************************************
Methyl Green Glycerine-Jelly Stain
Add saturated (about 3%) solution of methyl green in 50%
ethanol drop by drop to melted glycerine jelly ( a good
comercial grade is satisfactory), until jelly becomes as
dark as green ink.
****************************************************************
Methyl Orange Indicator
0.5 gm Methyl orange
1 liter water
****************************************************************
Methylene blue stain
0.3 gm Methylene blue
30 ml 95% ethanol
100 ml distilled water
Dissolve stain in alcohol, then dilute with water and filter
****************************************************************
Methylene Blue, Loeffler's
0.3 gm Methylene blue
30 ml 95% ethanol
70 ml Dilute KOH
****************************************************************
Meyer's Adhesive
Add to one fresh egg white, an equal quantity of glycerine
and 1 gm of sodium salicylate and a crushed crystal of
thymol. Shake wall and filter through 2-3 thicknesses
of sterile cheesecloth
****************************************************************
N's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
NADI Reagent
A. 1% alpha-naphthol in 95% ethanol.
B. 1% N,N-dimethyl-p-phenylenediamine HCl in water
Solutions a and b are mixed in equal amounts just prior to
use.
****************************************************************
Naphthylamine Hydrochloride
Dissolve 0.6 gm 1-naphthylamine hydrochloride in distilled
water to which 1.0 ml of con HCl has been added. Dilute to
100 ml with distilled water. Store in refrigerator.
****************************************************************
Navashin's Fixative
SOLUTION A
5 gm Chromic acid
50 ml Acetic acid
320 ml distilled water
SOLUTION B
200 ml formalin
175 ml distilled water
Mix equal parts of each solution just before use.
****************************************************************
Nessler Reagent
Dissolve 100 gm anhy7drous mercuric iodide and 70 gm
anhydrous potassoum iodide in a small quantity of water and
add mixture slowly to a cool solution of 160 gm of NaOH in
500 ml of distilled water. Dilute to 1 liter with distilled
water. Store in pyrex bottle out of direct sunlight.
****************************************************************
Neutral Buffered Formalin, Lillie's
100 ml formalin
900 ml distilled water
4 g NaH2-PO4
6.5 gm Na2-HPO4
****************************************************************
Newcomers Fixative
6 parts isopropyl alcohol
3 parts propionic acid
1 part petrolium ether
1 part acetone
1 part dioxane
****************************************************************
Ninhydrin Reagent
0.5% ninhydrin in acetone or n-bunanol.
Thomas prefers n-butanol.
****************************************************************
Nitric acid dillution
3N 195 ml/L 69%
****************************************************************
O's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Ortho-Toluidine Reagent (for aquatic analysis)
Dissolve 4 gm ortho-toluidine in distilled water containing
15 ml of con HCl. Dilute to a final volume of 500 ml.
****************************************************************
Pancreatic juice, artificial
40 gm Pancreatin
0.4 gm Baking soda
200 ml water
Mix in diatomaceous earth and then filter under suction
Add a few drops of chloroform. Incubate at body temperature
Unstable. Maybe kept overnight in refrigerator.
****************************************************************
P's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Paradon (cellodine)
1:1 !00 % paradon and di-ethyl ether
****************************************************************
Pepsin in HCl
10-2 gm Pepsin
100 ml 0.2% HCl
****************************************************************
Pepsin Solution (make fresh)
1-2 gm Pepsin
100 ml water
****************************************************************
Peroxides Test
Add 1 ml of 10% KI to 10 ml of solution to be tested. If
brown color results in either layer peroxides are
present and the solution should be discarded with proper
precautions.
****************************************************************
pH indicators
Brom Cresol green; 0.4 gm BCG, 500 ml 95% ethanol, 500 ml
distilled water. Filter.
Cresol Red; Same procedure as above using 0.2gm cresol red
Thymol blue; Same as above using 0.5 gm of thymol blue
Phenolphthalein; 1.0 gm phenolphthalein in 50 ml of
95% ethanol and 50 ml of distilled water.
****************************************************************
Phenol Cotton Blue
20 ml Carbolic acid
20 ml Lactic acid
40 ml Glycerine
20 ml Water
0.05 gm Cotton blue
****************************************************************
Phenol Red Lactose Broth
10 gm Protease Peptone #3
1 gm Beef extract
5 gm Lactose
5 gm Sodium Chloride
18 mg Phenol red
1 liter water
****************************************************************
Phenoldisulfonic acid
Dissolve 25 gm pure white phenol crystals in 150 ml con
Sulfuric acid. Add 75 ml fuming sulfuric acid (15% free SO4
Stir well and heat for 2 hours in water bath
****************************************************************
Phenolphthalein
0.5 gm Phenolphthalein
100 ml 50% ethanol
****************************************************************
Phloroglucinol, HCl
Solution A; 1 gm phloroglucinol in 100 ml of 95% ethanol
Solution B; 50 ml con HCl in 50 ml distilled water
****************************************************************
Phosphoric acid dilltuion
3 N 205 m/L 85%
****************************************************************
Physiological saline, LOCKE'S
9 gm NaCl
0.2 gm NaHCO3
0.42 gm KCl
0.25 gm CaCl2
2 gm dextrose
1000ml distilled water
Dissolve CaCl2 in a little of the water and add it to the
rest of the solution to prevent pcptation.
Add dextrose only if specified, and then at the last moment.
**************************************************************
Plant maceration fluid
1 part 10% Nitric acid
1 part 10% Chromic acid
(chromic trioxide)
Boil material 1 min in water. Pour off water add acid, stir
with glass rod and check at intervals until it begins to
seperate. Pour off acid, put in white silk scarf or
handkerchief and rinse with water for 12 hours. Drain
off water and cover with 5 volumes of 70% ethanol.
**************************************************************
Pollen Acetylizing Mixture
9 parts Acetic Anhydride
1 part con Sulfuric Acid
**************************************************************
Pollen Mounting Medium, Dahl's
16 parts 85% Lactic acid
2 parts N-Butyl alcohol
1 part 95% Ethanol
1 part Glacial Acetic Acid
1 part Glycerine
**************************************************************
Pollen Trapping Oil
2 parts melted white
petrolatum
1 part Parafin oil
1 part butyl alcohol
1 part xylene
Mix in beaker on hot blate. Filter while warm; keep in
stoppered containers, free from contamination.
**************************************************************
Potassium Oxalate - Aquatic analysis tests for O2
20 gm K2-C2-O4*HOH dissolved in water Add 45 gm NaOH and
diltue to 1 liter with water.
**************************************************************
Prescott's Preservative for Green Plant Material
6 parts water
3 parts 95% ethanol
1 part Formalin
5 ml/100ml Glycerine
Saturated with CuSO4 - decant leaving excess CuSO4
**************************************************************
Preservative (Sutton's)
10% glycerine
3% Phenol
2% Formalin
85% Water
**************************************************************
Pseudomonas Ovalic Culture Medium
1% Yeast extract
1% Beef extract
1.8% agar
**************************************************************
Pyrogallic Acid
50 mg KOH
100 ml distilled water
5 gm Pyrogallol
**************************************************************
R's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Rat Ringers
0.9% NaCl
0.24% CaCl2
0.042% KCl
0.02% NaHCO3
0.1% Dextrose
(if requested)
**************************************************************
Rat Ringers, LOCKE'S
0.9% NaCl
0.24% CaCl2
0.042% KCl
0.02% NaHCO3
0.1% Dextrose
**************************************************************
Rennin Solution
1-2 gm Rennin
100 ml water
**************************************************************
Riboflavin Stock
Dissolve 5 mg of Riboflavin in 30 ml of 0.02N acetic acid.
Warm in a water bath with constant rotation until dissolved.
Cool to room temp and dilute to 100 ml by adding additional
0.02N acetic acid. Store refrigerated.
Standard - unstable
10 ml of stock brought to 500 ml with distilled water.
Working; Dilute 1:10 before using.
**************************************************************
Ringers for lower vertebrates
0.65% NaCl
0.02% KCl
0.02% CaCl2
0.02% NaHCO3
**************************************************************
Ringers, Frog
0.8 gm NaCl
0.02 gm CaCl2 anhydrous
0.02 gm KCl
0.02 gm NaHCO3
100 ml distilled water
** 0.1 gm Dextrose
** add only if requested and if requested add just before
use.
**************************************************************
Ringers, Rat
0.9% NaCl
0.24% CaCl2
0.042% KCl
0.02% NaHCO3
0.1% Dextrose
(if requested)
**************************************************************
S's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Safranin for plant material
Dissolve 1 gm of Safranin O in 50 ml of methyl cellosolve.
After dissolved add:
95% ethanol 25 ml
distilled water 25 ml
Sodium acetate 1 gm
Formalin 2 ml
**************************************************************
Saline, Insect
0.7% NaCl
0.2 ml 10% CaCl2
**************************************************************
Saline, Insect (Hayome)
0.7% NaCl in distilled
**************************************************************
Saline, Physiological, Locke's
9 gm NaCl
0.2 gm NaHCO3
0.42 gm KCl
0.25 gm CaCl2
2 gm dextrose
1000ml distilled water
Dissolve CaCl2 in a little of the water and add it to the
rest of the solution to prevent pcptation.
Add dextrose only if specified, and then at the last moment.
**************************************************************
SCHIFF'S REAGENT
5 gm Basic Fuchsin
1N HCl 100 ml
K2-S2-O5 10 gm
activated
charcoal
(norite) 5 gm
Disolve 5 grams of basic fuchsin in 900 ml boiling distilled
water. Cool to 50 degrees C and add 100 ml of 1N HCl cool
to 25 deg and then add 10 grams of K2S2O5. Shake 2 minutes
and leave in the dark for 24 hours. Add 5 grams of fine
activated charcoal, shake for 2 minutes and then filter
through fast paper. Filtrate should be clear. Store in a
foil covered bottle in the refrigerator
**************************************************************
Schoudinn's Fluid
66 ml sat aq. Mercuric
chloride
33 ml 95% ethanol
5 ml glacial acetic acid
Add acid just prior to use.
**************************************************************
Semicon's Carmine
1 part glacial acetic acid
1 part water
Add carmine powder in excess of that which dissolves
immediately. Heat to 95-100 deg C for 15 min. Cool and
filter. Dilute filtrate eith equal partsw of 70% ethanol
**************************************************************
Shellac solution for Kymographs
Dillute 1 volume of shellac with 2.5 volumes of 95% ethanol.
**************************************************************
Smith's F.A.A.
90 ml 85% isopropanol
10 ml glacial acetic acid
10 ml Formalin
**************************************************************
Soil Extract Agar
960 mls Bristols solution
40 ml soil water supnatant
15 gm agar
**************************************************************
Soil water Medium
In one gallon battery jar place 0.5 gm calcium carbonate
enough garden soil to make a layer aprox 1/2 to 3/4 inch
deep and distilled water to within one inch of the top.
Cover with a glass plate and steam for 1 hour on 2
consecutive days.
**************************************************************
Spindle Inhibitor in Mitosis
0.01-0.05% Colchicine 4-6hrs
sat aq Paradichlorobenzene
4 hrs
sat aq alpha bromonapthalen
4 hrs
**************************************************************
Starch solutions
Make a thin slurry with the starch and a small amount of the
water. Heat the rest of the water to boiling. Add starch
slurry while stirring bring back to a boil. Cool before
use. 0.1% final concentration works best for iodine test
**************************************************************
Sudan Black B
0.25 gm Sudan Black B
100 ml Ethylene glycol
Dissolves slowly - let stand overnight and filter.
Very viscous.
**************************************************************
Sudan IV
Saturate sudan IV in absolute ethanol.
**************************************************************
Sulfanilic Acid
Completely dissolve 0.60 gm sulfanilic acid in 70 ml of hot
distilled water. Cool the solution and add 20 ml con HCl.
Dilute to 100 ml with distilled water and mix thoroughly.
**************************************************************
Sulfuric acid dillutions
3N 168 ml/L 95%
**************************************************************
Sutton's Preservative
10% Glycerine
3% Phenol
2% Formalin
85% Water
**************************************************************
Sutton's preservative
10% glycerine
3% Phenol
2% Formalin
85% Water
**************************************************************
T's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Transeau's Fixative
6 parts supernatant of sat
aq. CuSo4
3 parts 95% ethanol
1 part 40% aq. formalin
**************************************************************
Trichrome Stain
0.6 gm Chromotrope 2R
0.3 gm Fast green FCF
0.7 gm Phosphotungstic acid
1 ml Glacial acetic acid
100 ml distilled water
**************************************************************
Triple Stain, Mallory's
First Stain Solution; 1% acid fuchsin
Differentiating Moderating solution; 1% Phosphotungstinic
acid.
Second Staining Solution;
100 ml water
0.5 gm Analine blue
2.0 gm Orange G
2 gm Oxalic Acid
**************************************************************
Tris-Maleate buffer
Dissolve 29 gm of maleic acid and 30.3 gm of
tris-hydroxymethyl aminomethane in 500 ml of water.
Add 2 g of Charcoal, shake and let stand for 10 min.
Filter. Mix 40 ml of this stock solution with the amount
of 1N NaOH indicated below and dillute to a final volume of
100 ml using water.
**************************************************************
Turk's Diluting Fluid
1 ml Glacial acetic acid
1 ml Gentian Violet
100 ml distilled water
Filter before use
**************************************************************
W's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Waris Solution
To 1 liter of distilled water add 1 ml of the following:
10% KNO3, 2% MgSO4*7HOH, 2% (NH4)2-HPO4
5% CaSO4,
Iron sequestrin solution (adjust to pH 6.0 with 0.01N HCl
or 0.01N KOH
= 2.61 gm Sequestrin AA
2.49 gm FeSO4*7HOH
27 ml 1 N KOH
500 ml distilled water
**************************************************************
White blood cell dilution fluid
1% Glacial acetic acid
**************************************************************
White's Basic Medium
0.1 gm Ca(NO3)2
0.08 gm KNO3
0.035 gm MgSO4
0.065 gm KCl
0.0125 KH2-PO4
0.00075 gm KI
0.0044 gm MnSO4
0.0025 gm Fe2-(SO4)3
0.0015 gm ZnSO4
0.0016 gm H3-BO4
20 gm Sucrose
Bring to 1 liter with distilled water.
**************************************************************
Y's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z top
Yeast in Congo Red
1 pkg dry yeast
0.25-0.5gm Congo red
150 ml water
Add yeast to warm water and stir in congo red. Let stand
all day. Heat to boiling and cool. Store in refrigerator.
**************************************************************
Z's
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Ziehl-Nielsen's Carbolfuchsin - Acid Fast
0.3 gm Basic fuchsin
90% dye content
10 ml 95% ethanol
5 gm Phenol
95 ml distilled water
Dissolve fuchsin in alcohol. Dissolve Phenol in water and
then mix solutions.
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