アルカリ加水分解物を用いたカーバメート系殺虫剤のガスクロマトグラフィー

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タイトル別名
  • Gas Chromatography of Carbamate Insecticides with Alkali Hydrolysates
  • アルカリ カスイ ブンカイブツ オ モチイタ カーバメントケイ サッチュウザイ

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The simultaneous analysis by ECD-gas chromatography of six kinds of carbamate insecticides after hydrolysis and acetylation with monochloroacetic anhydride was investigated.<br>Examining the five kinds of GC-columns for separation of monochloroacetates of hydrolysates derived from carbamate insecticides, 5% DEGS+1% H3PO4 column and 5% OV-17 one gave good results.<br>The hydrolysis of the carbamates was rapidly carried out with 0.2N methanolic sodium hydroxide and the elimination of organochlorine insecticides originaled in the samples would not be necessary, because most of them except β-BHC, p, p′-DDE and drin were decomposed under the condition. The acetylation of the hydrolysates gave the best results under the condition which the hydrolysates were treated with 10ml each of 0.25N sodium hydroxide and 2% benzene solution of monochloroacetic anhydride for 30 seconds at room temperature, and also the acetates were. stable very much.<br>The recoveries of 6 kinds of carbamate insecticides added into vegetables were examined by the method established in the present study, and it was shown that the recoveries were in the range of 75 to 100%. And detectable minimum in this method were in the range of 0.007 to 0.095ng.

収録刊行物

  • 食品衛生学雑誌

    食品衛生学雑誌 16 (4), 275-281_1, 1975

    公益社団法人 日本食品衛生学会

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