Record Display for the EPA National Library Catalog

RECORD NUMBER: 168 OF 520

OLS Field Name OLS Field Data
Main Title Electron-Capture Gas Chromatographic Determination of 2-sec-Butyl-4,6-dinitrophenol (DNBP) Residues in Feed, Tissue and Excreta.
Author Edgerton, Thomas R. ; Moseman., Robert F. ;
CORP Author Health Effects Research Lab., Research Triangle Park, N.C. Environmental Toxicology Div.
Year Published 1977
Report Number EPA/600/J-78/024;
Stock Number PB-284 754
Additional Subjects Pesticides ; Herbicides ; Rats ; Laboratory animals ; Tissues(Biology) ; Gas chromatography ; Residues ; Chemical analysis ; Nitrogen organic compounds ; Excretion ; Methodology ; Hydrolysis ; Tables(Data) ; Urine ; Liver ; Blood ; Brain ; Experimental data ; Reprints ; Pesticide residues ; DNBP herbicide ; Phenol/butyl-dinitro ; Adipose tissue
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-284 754 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 6p
Abstract
Gas chromatographic methods for determining the herbicide DNBP (2-sec-butyl-4,6-dinitrophenol) in feed, food, urine, feces, and tissues are presented. After extraction the sample was reacted with diazomethane to produce the methyl ether of DNBP prior to analysis by electron-capture gas chromatography. An acid alumina column cleanup was developed to remove interferences from the sample extracts. Average recoveries of greater than 85% were obtained from tissues, excreta, and feed fortified with known amounts of DNBP. Because of apparent binding or salt formation, methodology for freshly fortified and aged feed are also presented. Residue levels of DNBP from rats fed at two feeding levels are also presented.