Method Description Sheet

Method EPA Method 622.1
Abstract A measured volume of sample, approximately 1-liter, is solvent extracted with 15% methylene chloride using a separatory funnel. The methylene chloride extract is dried and exchanged to hexane during concentration to a volume of 10 mL or less. Gas chromatographic conditions are described which permit the separation and measurement of the compounds in the extract by gas chromatography with a thermionic bead or flame photometric detector in the phosphorus mode.

Compounds Analyzed :

CAS #Compound Name
3244904 Aspon
97176 Dichlofenthion
52857 Famphur
122145 Fenitrothion
944229 Fonophos
732116 Phosmet
297972 Thionazin
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