Record Display for the EPA National Library Catalog

RECORD NUMBER: 7 OF 10

OLS Field Name OLS Field Data
Main Title Evaluation of Automated Spectrum Matching for Survey Identification of Wastewater Components by Gas Chromatography-Mass Spectrometry.
Author Shackelford, W. M. ; Cline, D. M. ; Faas, L. ; Kurth, G. ;
CORP Author Environmental Research Lab., Athens, GA.
Year Published 1982
Report Number EPA-600/J-82-130;
Stock Number PB83-182931
Additional Subjects Water analysis ; Chemical analysis ; Surveys ; Water pollution ; Gas chromatography ; Mass spectroscopy ; Reprints ; Water pollution detection
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB83-182931 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 15p
Abstract
An automated system for extracting spectra and matching them against a library of reference spectra was assembled and tested on 2000 g.c.-m.s. data files over a period of 2.5 years. The files were for actual field samples and were surveyed for all compounds rather than for a target list. No prior assumptions about sample content could be made. The reliability of spectrum matching is shown to be enhanced from the use of retention data accumulated in an historical library. An overall reliability of 71% is shown for matched spectra in field samples as demonstrated by re-processing of sample extracts.