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TITLE:  Determination of organochlorine and organophosphorus pesticide residues in eggs using a solid phase extraction cleanup
 
AUTHORS:  Schenck FJ;Donoghue DJ;
 
YEAR:  2000
 
JOURNAL ABBREV:  J Agric Food Chem
 
MONTH:  Dec
 
TYPE:  JOUR
 
REFMAN INDEX:  296
 
JOURNAL FULL:  Journal of agricultural and food chemistry
 
VOLUME:  48
 
ISSUE:  12
 
START PAGE:  6412
 
END PAGE:  6415
 
KEYWORDS:  analysis;Animals;Chickens;Chromatography;Chromatography,Gas;Eggs;Female;Food;Insecticides;isolation & purification;Maryland;methods;Organophosphorus Compounds;Pesticide Residues;Solid Phase Extraction;veterinary;Veterinary Medicine;
 
ABSTRACT:  A multiresidue solid phase extraction (SPE) method for the isolation and subsequent gas chromatographic determination of nonpolar organochlorine and polar organophosphorus pesticide residues in eggs is described. The method uses an acetonitrile extraction followed by an SPE cleanup using graphitized carbon black and aminopropyl SPE columns. Organophosphorus pesticides are determined by gas chromatography with flame photometric detection. After further cleanup of the extract using Florisil SPE columns, organochlorine pesticides are determined by gas chromatography with electron capture detection. Studies were performed using eggs containing both fortified and incurred pesticide residues. The average recoveries were 86-108% for 8 fortified organochlorine pesticide residues and 61-149% for 28 fortified organophosphorus pesticide residues
 
AFFILIATIONS:  Center for Veterinary Medicine, U.S. Food and Drug Administration, 8401 Muirkirk Road, Laurel, Maryland 20708, USA. fschenck@ora.fda.gov
 
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