Application of gel permeation chromatography and silica gel column chromatography for analysis of PCBs, chlordanes, and organochlorine pesticides in stock farm and marine products
2007
Kabashima, Y.(Aichi-ken. Inst. of Public Health, Nagoya (Japan)) | Oshima, H. | Ono, T.
We investigated simultaneous analytical methods for PCBs, chlordanes, and organochlorine pesticides in stock farm and marine products. These compounds were extracted from fish and meat with petroleum ether-acetone (2:1), from milk and egg with acetonitrile. The extract was cleaned up by gel permeation chromatography (GPC), and then by 4% hydrated silica-gel column chromatography, divided into 2 fractions of petroleum ether and petroleum ether-ethyl acetate (19:1). The test solution was subjected to dual-column GC equipped with ECD. Recoveries of these compounds from fish, meat, milk and egg ranged from 61 to 118%. Detection limits were 0.5-5 ng/g. These compounds in actual samples of fish, meat and milk could be analyzed sensitively without any interfering peaks. The present method would be useful for monitoring of the Japanese positive list system such as restriction of pesticide residue by Food Sanitation Law that had been enforced on May 29, 2006.
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