Record Display for the EPA National Library Catalog

RECORD NUMBER: 47 OF 1353

OLS Field Name OLS Field Data
Main Title Ambient Air Sampling with Portable Gas Chromatographs.
Author Berkley, R. E. ;
CORP Author Environmental Monitoring Systems Lab., Research Triangle Park, NC.
Year Published 1988
Report Number EPA/600/D-88/088;
Stock Number PB88-211701
Additional Subjects Chromatographic analysis ; Contaminants ; Gas chromatography ; Portable equipment ; Air pollution sampling
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB88-211701 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/04/1988
Collation 14p
Abstract
A Photovac 10S50 portable photoionization gas chromatograph mounted in a small automobile was used to sample air for organic vapors in Richmond and Hopewell, Virginia and in Staten Island, NY. A methylphenylsilicone column of 1.5 micrometer phase thickness was used with no backflush, and a 10 part per billion mixture of tetrachloroethylene in nitrogen was used as field recalibration standard. Calibrant contamination of the unit was minimal, and background levels of compounds for which the unit was calibrated below 0.5 part per billion could be observed. These compounds were chlorobenzene, ethylbenzene, o-xylene, m-xylene, and bromobenzene. Large releases of benzene, toluene, and several compounds for which the unit had not been calibrated were observed.