Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Automated Gas Chromatographic System for Pesticide Residue Analysis.
Author Johnson, John H. ; Sturino, Emilio E. ; Bourne., Sidney ;
CORP Author Environmental Protection Agency, Chicago, Ill. Central Regional Lab.
Year Published 1977
Report Number EPA/905/4-77/001;
Stock Number PB-263 690
Additional Subjects Pesticides ; Gas chromatography ; Chemical analysis ; Residues ; Phthalates ; Esters ; Concentration(Composition) ; Air pollution ; Water pollution ; Detection ; Automation ; Potable water ; Surface waters ; Sediments ; Biological extracts ; Pesticide residues
Library Call Number Additional Info Location Last
NTIS  PB-263 690 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 14p
Gas chromatograms of pesticides and phthalate esters obtained by an automatic injection system are analyzed by a computerized gas chromatographic data system. The system described provides for simultaneous injection onto two independent columns equipped with individual detectors. The gas chromatographic output is processed by the computer into a report for each column listing the names and concentrations for compounds of interest. The system has sufficient reliability to allow detection of chlorinated pesticides at the picogram level and organophosphorous pesticides and phthalates at the nanogram level. This system is readily incorporated into currently accepted methods for pesticide residue analysis. Once the system is calibrated, 42 samples can be analyzed for 45 parameters without operator intervention.