[Multiresidue analysis of pesticides in agricultural products by GC-ECD after GPC and graphitized carbon column cleanup].
A multiresidue method that enables determination of many pesticides in agricultural products by GC-ECD was studied. First, 63 pesticides were selected as agrochemicals commonly used in crop protection in this country, and/or found in agricultural products over the past 6 years (April 1996-March 2002) in Aichi Prefecture. A sample was extracted with acetonitrile and the acetonitrile layer was separated by salting-out. The extract was purified on a GPC system with a graphitized carbon columns, and then by a Florisil mini-column fractionation. The test solution was subjected to one-injection, dual-column GC with dual ECD (column: Stx-CLPesticides and Stx-CLPesticides2). The detection limits of the pesticides were in a suitable range (0.0001-0.01 microg/g) for monitoring pesticide residues in agricultural products. The method was applied to 203 commercial agricultural products to demonstrate its suitability for routine analysis.
Ueno
Eiji
E
Aichi Prefectural Institute of Public Health: 7-6, Nagare, Tsuji-machi, Kita-ku, Nagoya 462-8576, Japan.
Oshima
Harumi
H
Saito
Isao
I
Matsumoto
Hiroshi
H
Nakazawa
Hiroyuki
H
D002849:Chromatography, Gas / Q000295:instrumentation / Q000379:methods*; D002850:Chromatography, Gel / Q000295:instrumentation / Q000379:methods*; D018556:Crops, Agricultural / Q000737:chemistry*; D005504:Food Analysis / Q000295:instrumentation / Q000379:methods*; D005506:Food Contamination / Q000032:analysis*; D006108:Graphite; D010573:Pesticide Residues / Q000032:analysis*
D010573:Pesticide Residues; D006108:Graphite