||Modified Purge-and-Trap/Gas Chromatography Method for Analysis of Volatile Halocarbons in Microbiological Degradation Studies (Journal Version).
Cochran, J. W. ;
Yates, M. V. ;
Henson, J. M. ;
||Northrop Services, Inc., Ada, OK.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Gas chromatography ;
Water pollution ;
Water analysis ;
Ground water ;
||Some EPA libraries have a fiche copy filed under the call number shown.
A modification of a purge-and-trap unit is described for use in microbiological studies concerning degradation of aliphatic halogenated hydrocarbons (halocarbons). Sealed serum tubes containing bacteria, aqueous medium, headspace, and volatile halocarbons are used as purge vessels to monitor the disappearance of the halocarbons. Data are presented to show the loss of volatile halocarbons that occurred when these systems were analyzed by standard purge-and-trap. An application of this method is shown with methane-utilizing bacteria. The modified purge-and-trap method resulted in a total measurement of halocarbons in the sample without making a transfer to a separate purge vessel. (Copyright (c) Elsevier Science Publishers B.V. Biomedical Division.)