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市販牛乳中의 有毒性 農藥의 殘留量에 關한 調査 硏究

Studies on Chlorinated Pesticides Residues in Milk on Sale in Seoul

공중보건잡지 1971년 8권 1호 p.122 ~ 126
강한길,
소속 상세정보
강한길 (  ) - 서울대학교 보건대학원

Abstract


A study was carried out to determine chlorinated pesticide residues in milk collected from three pasteurizing plants in Seoul July and in October, 1970, respectively.
The pesticide residues was extracted from milk with mixed ether, and the extract was cleaned up on a Florisil column. The pesticide residues were determined by Gas Liquid Chromatography using electron capture detection. The method was sensitive to concentrations of 0.002mg/ml.
The Gas Chromatographic detection yielded average recoveries from fortified milk of 97.3% at levels of 0.04ppm for the pesticide residues.
The result of instrumental assay on chlorinated pesticide residues in milk were as follows.
1. Lindane, Aldrin, Heptachlor, and p,p´-DDT were not detected throughout whole milk samples on the basis of the GLC sensitivity.
2. Chromatograms of extract from Seoul Milk Plant show the three peaks which differ from retention times of above components.
3. Four components, Lindane, Aldrin, Heptachlor, and p,p´-DDT were not detected by TLC from whole milk samples, but one or two spots which have different Rf value were detected.

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