Record Display for the EPA National Library Catalog


Main Title Optimization of Purging Efficiency and Quantification of Organic Contaminants from Water Using a 1-L Closed-Loop-Stripping Apparatus and Computerized Capillary Column GC/MS.
Author Coleman, W. E. ; Munch, J. W. ; Slater, R. W. ; Melton, R. G. ; Kopfler, F. C. ;
CORP Author Health Effects Research Lab., Cincinnati, OH.
Year Published 1983
Report Number EPA/600/J-82/037;
Stock Number PB84-244128
Additional Subjects Chemical analysis ; Water analysis ; Chlorine organic compounds ; Traps ; Design criteria ; Performance evaluation ; Gas chromatography ; Mass spectroscopy ; Purging ; Ground water ; Potable water ; Reprints ; Closed loop stripping systems ; Water pollution detection ; Computer applications
Library Call Number Additional Info Location Last
NTIS  PB84-244128 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
Optimization of a HERL-designed 1-L closed-loop-stripping (CLS) system, using variations of sample water bath temperatures and purging times, was accomplished by spiking five 1-chloroalkanes (C6, C8, C12, C16, and C18) into low organic Milli-Q reagent water to determine the recovery efficiency of each. Once operating conditions of purging time and water bath temperature were determined, on the basis of optimum recovery of the 1-chloroalkanes, recovery studies of a 22-compound standard mixture of organics were initiated by using two 1-L CLS devices of different design. This report supports previous CLS applications papers (2-4) demonstrating that CLS-capillary column GC/MS is an excellent method to measure many toxic organics in drinking water and in groundwater. For quantitative results, recovery efficiencies of individual compounds must be determined in the same matrix as the sample matrix.