Method Description Sheet

Method EPA Method 552.1
Title DETERMINATION OF HALOACETIC ACIDS AND DALAPON INDRINKING WATER BY ION-EXCHANGE LIQUID-SOLID EXTRACTION AND GASCHROMATOGRAPHY WITH ELECTRON CAPTURE DETECTION
Abstract A 100-mL volume of sample is adjusted to pH 5.0 and extracted with a preconditioned miniature anion exchange column. NOTE: The use of liquid-solid extraction disks is certainly permissible as long as all the quality control criteria of this method are met. The analytes are eluted with small aliquots of acidic methanol and esterified directly in this medium after the addition of a small volume of methyl-tert-butyl ether (MTBE) as co-solvent: The methyl esters ar-e partitioned into the MTBE phase and identified and measured by capillary column gas chromatography using an electron capture detector (GC/ECD).

Compounds Analyzed :

CAS #Compound Name
79118 Monochloroacetic Acid
79436 Dichloroacetic Acid
76039 Trichloroacetic Acid
79083 Monobromoacetic Acid
5589963 Bromochloroacetic Acid
631641 Dibromoacetic Acid
75990 Dalapon
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