Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Study on the Development of Analytical Method (Multi-Pesticide Residue Method) for Organophosphate Pesticides

유기인제 농약 분석 방법 (Multi-Pesticide Residue Method) 개발에 관한 연구

  • 이봉헌 (부산대학교 화학과) ;
  • 김우성 (부산대학교 화학과, 부산지방 식품의약품청, 부산전문대학교 공업화학과, 인제대학교 환경학과)
  • Published : 1997.04.01
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Abstract

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).

유기인제 농약을 70% acetone으로 추출한 다음 dlchloromethane 층으로 옮겨 추출물을 florisil로 충진된 open-column에서 chromatography를 행하였다. 마지막 추출물을 nitrogen-phosphorus detector(GC/NPD)을 가진 GC로 분석하였다. Narrow-bore capillary GC(Ultra-2)에 대해 18 가지의 유기인제 농약의 회수율이 88.7%에서 100.0%에 달하였다. 본 분석 방법의 최소 검출 준위는 0.019 - 0.035 mg/kg 이었으며 sample throughput(추출, open-column chro-matography 및 GC 분석)도 상당히 개선되었다.(sample당 8시간)

Keywords

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