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RECORD NUMBER: 8 OF 49

OLS Field Name OLS Field Data
Main Title Analysis of Organophosphorus Pesticide Samples by High-Performance Liquid Chromatography/Mass Spectrometry and High-Performance Liquid Chromatography/Mass Spectrometry/Mass Spectrometry.
Author Betowski, L. D. ; Jones, T. L. ;
CORP Author Environmental Monitoring Systems Lab., Las Vegas, NV.
Publisher c1988
Year Published 1988
Report Number EPA/600/J-88/383;
Stock Number PB90-103029
Additional Subjects Chemical analysis ; Pesticides ; Mass spectroscopy ; Phosphorus organic compounds ; Performance evaluation ; Sampling ; Spectrum analysis ; Experimental design ; Ionization ; Dissociation ; Reprints ; High performance liquid chromatography ; EPA method 8140 ; Environmental monitoring ; Daughter products
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB90-103029 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 03/10/1990
Collation 7p
Abstract
Ten analytes from the U.S. Environmental Protection Agency's SW-846, Method 8140, Organophosphorous Pesticide Parameters, were subjected to analysis by high performance liquid chromatography/mass spectrometry (HPLC/MS) and HPLC/MS/MS with thermospray ionization. The compounds chosen suffered poor recoveries under analysis by Method 8140 which is a gas chromatographic procedure. Limits of detection, precision values, and retention times were generated with HPLC/MS methods on pure analytical standards. Collision activated dissociation daughter ion spectra were also collected by tandem mass spectrometric techniques. Four environmental samples known to contain organophosphorous pesticides were analyzed by HPLC/MS, and these results were compared with similar analyses by GC/MS. Tandem mass spectrometry was used to confirm the compounds identified by HPLC/MS.