Method Description Sheet

Method EPA Method 8141
Title ORGANOPHOSPHORUS COMPOUNDS BY GAS CHROMATOGRAPHY:CAPILLARY COLUMN TECHNIOUE
Abstract Method 8141 provides gas chromatographic conditions for the detection of ppb concentrations of organophosphorus compounds. Prior to the use of this method, appropriate sample preparation techniques must be used. Water samples are extracted at a neutral pH with methylene chloride by using a separatory funnel (Method 3510) or a continuous liquid-liquid extractor (Method 3520). Soxhlet extraction (Method 3540) or ultrasonic extraction (Method 3550) using methylene chloride/acetone (1:1) are used for solid samples. Both neat and diluted organic liquids (Method 3580, Waste Dilution) may be analyzed by direct injection. Spiked samples are used to verify the applicability of the chosen extraction technique to each new sample type. A gas chromatograph with a flame photometric or nitrogen-phosphorus detector is used for this multiresidue procedure.

Compounds Analyzed :

Selecting a CAS number from the table below will direct you to the
National Library of Medicine's Hazardous Substances Database for more details on the compound.

CAS #Compound Name
3244-90-4Aspon
86-50-0 Azinphos-methyl
2642-71-9 Azinphos-ethyl
35400-43-2 Bolstar (Sulprofos)
786-19-6 Carbophenothion
470-90-6Chlorfenvinphos
2921-88-2Chlorpyrifos
56-72-4Coumaphos
7700-17-6Crotoxyphos
298-03-3Demeton-O
126-75-0Demeton-S
333-41-5Diazinon
97-17-6 Dichlorofenthion
62-73-7 Dichlorvos (DDVP)
141-66-2Dicrotophos
60-51-5Dimethoate
78-34-2 Dioxathion
298-04-4 Disulfoton
2104-64-5EPN
563-12-2 Ethion
13194-48-4Ethoprop
52-85-7Famphur
122-14-5Fenithrothion
115-90-2Fensulfothion
944-22-9Fonophos
55-38-9Fenthion
21609-90-5Leptophos
121-75-5Malathion
150-50-5 Merphos
7786-34-7Mevinphos
6923-22-4Monocrotophos
300-76-5 Naled
56-38-2 Parathion,ethyl
298-00-0 Parathion,methyl
298-02-2Phorate
732-11-6Phosmet
13171-21-6Phosphamidon
299-84-3 Ronnel
22248-79-9 Stirophos (Tetrachlorovinphos)
3689-24-5 Sulfotepp
13071-79-9Terbufos
297-97-2 Thionazin (Zinophos)
34643-46-4Tokuthion (Protothiofos)
327-98-0Trichloronate
680-31-9Hexamethylphosphoramide (HMPA)
78-30-8Tri-o-cresylphosphate (TOCP)
1912-24-9 Atrazine
122-34-9Simazine
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