기체-액체 크로마토그래피에 의한 잔류 유기염소제 농약들의 동시 분석에 관한 연구 (제2보). GLC에 의한 농약의 정량

Studies on the Simultaneous Analysis of Organochlorine Pesticide Residues by Gas-Liquid Chromatography (II). Determination of Pesticides by GLC

  • 김택제 (한국과학기술원 화학분석실) ;
  • 박송자 (한국과학기술원 화학분석실) ;
  • 김영상 (고려대학교 문리대학 화학과)
  • Taek-Jae Kim (Chemical Analysis Lab., Korea Advanced Institute of Science and Technology) ;
  • Song-Ja Park (Chemical Analysis Lab., Korea Advanced Institute of Science and Technology) ;
  • Young-Sang Kim (Department of Chemistry, Korea University)
  • 발행 : 1985.10.20

초록

농산물에 잔류되어 있는 16종의 유기염소제 농약들을 추출하여 cleanup한 것을 기체 액체 크로마토그래피법으로 분리, 정량하였다. 5% QF-1 정지상의 분리관을 주로 사용하였으며 3% OV-17관과 DC-200/2.5% QF-1 혼합관을 보조적으로 사용하였다. $^{63}Ni$ electron capture detector를 사용하여 각 농약 성분을 검출하였다. 대부분의 농약에 대한 감응곡선은 직선성을 나타냈고 일부는 약간 휘었으나 정량에는 별 지장을 주지 않았다. 16종의 농약을 13종의 농산물에 가하여 분석한 결과 대부분은 85% 이상의 평균회수율을 보였으며 각 5회 분석결과에 대한 상대평균편차는 12.1% 이하로서 AOAC에서 정한 기준을 만족하였다.

Sixteen organochlorine pesticides extracted out from the crops and cleaned by solvent-solvent partitioning and Florisil column chromatography were determined by gas-liquid chromatography. The majority of the pesticides were well separated by being eluted through 5% QF-1 column and some of them through 3% OV-17 column and 2.596 DC-200/2.5% QF-1 column, and the eluted pesticides were detected by $^{63}Ni$ electron capture detector. The linear calibration curves were obtained for the most of pesticides while some curves were slightly deviated from the linearity. In the determination of 16 pesticides added to thirteen kinds of crops, the recoveries were showed over 85% for the most cases and the relative standard deviations of 5 analyses were less than 12.1%. The results were within the criteria of the AOAC method.

키워드

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