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KMID : 1024519970060020183
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Journal of the Environmental Sciences
1997 Volume.6 No. 2 p.183 ~ p.187
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Study on the Development of Analytical Method (Multi-Pesticide Residue Method) for Organophosphate Pesticides
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Lee Bong-Hun
Kim Woo-Seong
Park Won-Woo
Jeong Seong-Ug
Park Heung-Jai
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Abstract
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Organophosphate pesticides were extracted with 70% acetone and then transferred to dichloromethane. Extracts were applied to open-column chromatography with florisil. The florial extract was analyzed by gas chromatography with nitrogen-phosphorus detector(GC/NPD). Recoveries of the 18 organophosphate pesticides were ranged from 88.7% to 100. 0% for the narrow-bore capillary GC(Ultra-21. The minimum detectable level of this analytical method was 0.019 - 0.035 mg/kg. Sample throughput(extraction, open-column chro- matography, and GC analysts) was decreased considerably (8h per sample).
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KEYWORD
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organophosphate pesticides, florisil, gas chromatography, GC/NPD
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