Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Relative Retention Ratios of Ninety-Five Pesticides and Metabolites on Nine Gas-Liquid Chromatographic Columns Over a Temperature Range of 170 to 204C in Two Detection Modes.
Author Thompson, John F. ; Mann, Jon B. ; Apodaca, Alfred O. ; Kantor., Edward J. ;
CORP Author Health Effects Research Lab., Research Triangle Park, N. C.
Year Published 1975
Stock Number PB-275 115
Additional Subjects Pesticides ; Gas chromatography ; Chemical analysis ; Metabolism ; Chlorine organic compounds ; Phosphorus organic compounds ; Tables(Data) ; Reprints
Library Call Number Additional Info Location Last
NTIS  PB-275 115 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
Tables of relative retention data are presented for 95 organochlorine and organophosphorus pesticidal compounds at column oven temperatures from 170 to 204C in 2 degree increments. Retention values, relative to aldrin or parathion (RRT (A of P)), were found to vary inversely with increasing column temperature for all compounds eluting later than the reference compound, and in direct proportion for those compounds eluting earlier than the fixed reference compound. Studies revealed a linear relationship between column temperature and relative retention ratios; thus, by obtaining precise values by gas-liquid chromatography for a number of pesticidal compounds at 170, 185, and 200C, a computer program was developed to obtain RRT (A of P values) at all 2 degree increments from 170 to 204C, the customary limits in the gas-liquid chromatography of pesticides. The tables are valuable in the tentative identification of pesticidal peaks resulting from the chromatography of sample extracts for multiresidue assessment.