섬유

rapid analysis for aflatoxins in cottonseed products with silica gel cartridge clean-up

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 244
a proposed rapid and versatile method of analysis for aflatoxins in cottonseed products using waters associates' sep-pak silica cartridge clean-up is presented. samples are extracted with acetonitrile/water azeotrope and a filtered aliquot is evaporated to dryness. a toluene/acetonitrile (96:4) solution of the dry extract is applied to a sep-pak column. gossypol derivatives and other artifacts are eluted with chloroform/ethyl ether (1:4). the sep-pak is then mated with either a romer minicolumn for rapid minicolumn application or a small column of acid alumina deactivated with 4 water to produce a clean extract for quantitation by thin layer chromatography or high pressure liquid chromatography. 5 refs
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