Record Display for the EPA National Library Catalog

RECORD NUMBER: 4 OF 15

Main Title Enhanced Spectrum Matching of Mixed Mass Spectra by Means of Quality Factors.
Author Shackelford, W. M. ; Cline, D. M. ;
CORP Author Environmental Research Lab., Athens, GA.
Year Published 1984
Report Number EPA/600/J-84/222;
Stock Number PB85-160893
Additional Subjects Mass spectroscopy ; Environmental surveys ; Chemical analysis ; Performance evaluation ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB85-160893 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
Abstract
A system of computer programs for recognizing inpure or mixed spectra was assembled that provided automatic subtraction of reference mass spectra from a mixed spectrum. The software was 99% successful in recognizing pure spectra for the cases tested. Subtractions were done on mixed spectra in 70% of the cases tested. Spectrum subtraction enhanced the ability of the matching program to match components of a multicomponent mixture correctly, whereas quality factors were a great aid in the evaluation of the overall match validity.