Method Description Sheet

Method EPA Method 624
Title PURGABLE ORGANICS IN WATERS
Abstract An inert gas is bubbled through a 5-mL sample contained in a specially designed purging chamber at ambient temperature. The purgeables are efficiently transferred from the aqueous phase to the vapor phase. The vapor is swept through a sorbent column where the purgeables are trapped. After purging is completed, the sorbent column is heated and back flushed with the inert gas to desorb the purgeables onto a gas chromatographic column. The gas chromatograph is temperature programmed to separate the purgeables which are then detected with a mass spectrometer.

Compounds Analyzed :

CAS #Compound Name
71432 Benzene
75274 Bromodichloromethane
75252 Bromoform
74839 Bromomethane
56235 Carbon tetrachloride
108907 Chlorobenzene
75003 Chloroethane
110758 2-Chloroethylvinyl ether
67663 Chloroform
74873 Chloromethane
124481 Dibromochloromethane
95501 1,2-Dichlorobenzene
541731 1,3-Dichlorobenzene
106467 1,4-Dichlorobenzene
75343 1,1-Dichloroethane
107062 1,2-Dichloroethane
75354 1,1-Dichloroethene
156605 trans-1,2-Dichloroethene
78875 1,2-Dichloropropane
10061015 cis-1,3-Dichloropropene
10061026 trans-1,3-Dichloropropene
100414 Ethylbenzene
75092 Methylene chloride
79345 1,1,2,2-Tetrachloroethane
127184 Tetrachloroethene
108883 Toluene
71556 1,1,1 -Trichloroethane
79005 1,1,2-Trichloroethane
79016 Trichloroethene
75694 Trichlorofluoromethane
75014 Vinyl chloride
95476 o-Xylene
108383 m-Xylene
106423 p-Xylene
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