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Main Title Improved Silica Gel Cleanup Method for Organophosphorus Pesticides.
Author Lores, E. M. ; Moore, J. C. ; Moody, P. ;
CORP Author Environmental Research Lab., Gulf Breeze, FL. ;Computer Sciences Corp., Gulf Breeze, FL.
Year Published 1987
Report Number EPA/600/J-87/144 ;CONTRIB-571;
Stock Number PB88-149018
Additional Subjects Silical gel ; Phosphorus organic compounds ; Adsorbents ; Reprints ; Pesticide residues
Library Call Number Additional Info Location Last
NTIS  PB88-149018 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
Abstract Quantitative recovery of some organophosphorus pesticide residues has not been possible with existing silica gel-cleanup procedures. The authors have developed a modification that permits quantitative recovery of all organophosphorus pesticides tested, except those with a carbamate functional group. The method uses a 3.5 g silica gel column with a 1% acetic acid wash to condition the column prior to the addition of the sample. Percentage recovery and standard deviation of compounds such as phorate and disulfoton are 96 (5.6) and 98 (1.0), respectively. Recoveries range from 92 to 101% for the 11 compounds tested.
Supplementary Notes Pub. in Chemosphere, v16 n5 p1065-1069 1987. Prepared in cooperation with Computer Sciences Corp., Gulf Breeze, FL.
NTIS Title Notes Journal article.
Title Annotations Reprint: Improved Silica Gel Cleanup Method for Organophosphorus Pesticides.
PUB Date Free Form 1987
Category Codes 68E
NTIS Prices PC A02/MF A01
Primary Description 600/04
Document Type NT
Cataloging Source NTIS/MT
Control Number 807122216
Origin NTIS
Type CAT