493
REFERENCE STANDARDS |
ENVIRONMENTAL MATERIALS
EPA Super fund Contract Lab Program (CLP)
04.2, 04.1, 03.2, 3/90, 4/89, and 2/88 SOW (Pesticides),
QA Mixes
Working with solutions containing decachlorobiphenyl
Decachlorobiphenyl has poor solubility in most organic solvents. The
maximum concentration that can be prepared in acetone, hexane, or
isooctane is 200 μg/mL. Temperature will affect the solubility as well.
Storing solutions at reduced temperatures will cause decachlorobiphenyl
to precipitate.
Products containing decachlorobiphenyl must be sonicated for a
minimum of 10 minutes prior to opening the ampul. Because each
ultrasonic bath operates at a different energy level, 10 minutes is a
guideline only. Longer sonication time will not affect product quality.
These precautions apply to working solutions prepared in your
laboratory as well. The amount of compound that precipitates depends
on concentration AND temperature. If you store your standards at a
temperature lower than 4°C (even dilute solutions), allow extra
sonication time.
decachlorobiphenyl
2,4,5,6-tetrachloro-
m
-xylene
Pesticide Surrogate Mix
(2 components)
200µg/mL each in acetone, 1mL/ampul
cat. # 32000 (ea.)
2,4,5,6-Tetrachloro-
m
-xylene
200µg/mL in acetone, 1mL/ampul
cat. # 32027 (ea.)
200µg/mL in acetone, 5mL/ampul
cat. # 32028 (ea.)
Decachlorobiphenyl (BZ #209)
200µg/mL in acetone, 1mL/ampul
cat. # 32029 (ea.)
200µg/mL in acetone, 5mL/ampul
cat. # 32030 (ea.)
10µg/mL in isooctane, 1mL/ampul
cat. # 32289 (ea.)
Dibutylchlorendate
200µg/mL in acetone, 1mL/ampul
cat. # 32025 (ea.)
2,4,5-trichlorophenol
Florisil® Cartridge Check Standard
1,000µg/mL in acetone, 1mL/ampul
cat. # 32017 (ea.)
γ
-chlordane
1µg/mL
4,4'-DDE
2
dieldrin
2
endosulfan I
1
endosulfan sulfate
2
endrin ketone
2
methoxychlor
10
Pesticide Resolution Check Mix
(7 components)
In hexane, 1mL/ampul
cat. # 32001 (ea.)
γ
-chlordane
1µg/mL
4,4'-DDE
2
decachlorobiphenyl (SS)
2
dieldrin
2
endosulfan I
1
endosulfan sulfate
2
endrin ketone
2
methoxychlor
10
2,4,5,6-tetrachloro-
m
-xylene (SS) 2
Pesticide Resolution Check Mix w/Surrogates
(9 components)
In hexane, 1mL/ampul
cat. # 32073 (ea.)
α
-BHC
1µg/mL
β
-BHC
1
γ
-BHC (lindane)
1
4,4'-DDT
10
endrin
5
methoxychlor
25
Pesticide Performance Evaluation Mix
(6 components)
In hexane, 1mL/ampul
cat. # 32002 (ea.)
α
-BHC
1µg/mL
β
-BHC
1
γ
-BHC (lindane)
1
4,4'-DDT
10
decachlorobiphenyl (SS)
2
endrin
5
methoxychlor
25
2,4,5,6-tetrachloro-
m
-xylene (SS) 2
Pesticide Performance Evaluation Mix w/Surrogates
(8 components)
In hexane, 1mL/ampul
cat. # 32074 (ea.)
04.2, 04.1, 03.2, 3/90, 4/89, and 2/88 SOW (Pesticides),
QA Mixes
cont'd
SOM01.1 (Pesticides), QA Mixes
decachlorobiphenyl
200µg/mL
2,4,5,6-tetrachloro-
m
-xylene
100
Pesticide Surrogate Mix
(2 components)
In acetone, 1mL/ampul
cat. # 32453 (ea.)
aldrin
10µg/mL
α
-BHC
10
β
-BHC
10
δ
-BHC
10
γ
-BHC (lindane)
10
α
-chlordane
10
γ
-chlordane
10
decachlorobiphenyl (SS)
20
dieldrin
20
4,4'-DDD
20
4,4'-DDE
20
4,4'-DDT
20
endosulfan I
10
endosulfan II
20
endosulfan sulfate
20
endrin
20
endrin aldehyde
20
endrin ketone
20
heptachlor
10
heptachlor epoxide (isomer B)
10
methoxychlor
100
2,4,5,6-tetrachloro-
m
-xylene (SS) 10
Organochlorine Pesticide Resolution Check Mix
(with surrogates)
(22 components)
In hexane:toluene (90:10), 1mL/ampul
cat. # 32454 (ea.)
tech
tip
4,4'-DDT
200µg/mL
endrin 100µg/mL
Organochlorine Pesticide System Evaluation Mix
(2 components)
In methyl
tert
-butyl ether, 1mL/ampul
cat. # 32417 (ea.)
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Mar 2011
