電子捕獲ガスクロマトグラフィーによる米粒中のメチルパラチオンの定量

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タイトル別名
  • Determination of methyl parathion in rice grains by electron-capture gas chromatography
  • デンシ ホカク ガス クロマトグラフィー ニ ヨル コメツブ チュウ ノ メチルパラチオン ノ テイリョウ
  • The residue analysis of agricultural chemicals. I
  • 農薬の残留分析法 (第1報)

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A method was proposed for the electron-capture gas chromatographic determination of methyl parathion in rice grains. To 25 g of rice grains was added 50 ml of n-hexane. After allowing to stand at room temperature overnight, n-hexane was filtered through a glass filter (17G3), and the residue was washed several times with each 30 ml of ether. The eluate was evaporated to 10 ml, and cleaned up by the alumina column chromatography using n-hexane-ether (9 : 1) as developing solvent. An aliquot of the n-hexane solution was injected into a gas chromatograph with a spiral galss column, 5 feet × 1/8 inch (outside diameter), packed with 10% high vacuum silicone grease on 4060 mesh chromosorb W and an electron-capture detector. The column temperature was adjusted at 180°C. Nitrogen was used as a carrier gas, the flow rate being maintained to 20 ml per minute. Seventy to 101% of methyl parathion was recovered by this method from rice grains containing 0.1 to 10 ppm of the methyl parathion and Sumithion.

収録刊行物

  • 分析化学

    分析化学 17 (2), 187-191, 1968

    公益社団法人 日本分析化学会

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