Method Description Sheet

Method EPA Method 515.3
Title DETERMINATION OF CHLORINATED ACIDS IN WATER BY GASCHROMATOGRAPHY WITH AN ELECTRON CAPTURE DETECTOR
Abstract A 250-mL measured volume of sample is adjusted to pH 12 with 6 N sodium hydroxide for 1 hr. to hydrolyze derivatives. Extraneous organic material is removed by a solvent wash. The sample is acidified, and the chlorinated acids are extracted with a 47 mm resin based extraction disk. The acids are converted to their methyl esters using diazomethane. Excess derivatizing reagent is removed, and the esters are determined by capillary column GC using an electron capture detector (ECD).

Compounds Analyzed :

CAS #Compound Name
50594666 Acifluorfen
25057890 Bentazon
133904 Chloramben
94757 2,4-D
75990 Dalapon
94826 2,4-,DB
1918009 Dicamba
51365 3,5-Dichlorobenzoic acid
120365 Dichlorprop
88857 Dinoseb
7600502 5-Hydroxydicamba
100027 4-Nitrophenol
87865 Pentachlorophenol (PCP)
1918021 Picloram
93765 2,4,5-T
93721 2,4,5-TP
DISCLAIMER - Please Read