Gas chromatographic determination of geometrical isomers of Allethrin and Phthalthrin

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Other Title
  • ガスクロマトグラフィーによるアレスリン,フタルスリンの幾何異性体の分析
  • ガス クロマトグラフィー ニ ヨル アレスリン , フタルスリン ノ キカ イセイタイ ノ ブンセキ
  • Analytical studies on pesticides and related compounds. IX
  • 農薬および関連化合物の分析に関する研究(第9報)

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Description

The geometrical isomers of both Allethrin (dl-2-ally1-4-hydroxy-3-methyl-2- cyclopentene-1-one-dl-cis·trans-chrysanthemate) and Phthalthrin [N-(3, 4, 5, 6-tetrahydrophthalimide) methyl-dl-cis·trans-chrysan-themate] were completely separated on a gas chromatograph equipped with a hydrogen flame ionization detector and the results obtained by analysing synthetic mixtures of the isomers indicated that trans-cis ratios of Allethrin and Phthalthrin could be determined exactly by their peak area ratios. The trans-cis ratio of technical Allethrin and that of technical Phthalthrin were both about 80:20. The optimum gaschromatographic conditions were as follows. Column: glass, 2m in length and 3mm in inner diameter; column package: 6080mesh, acid-washed and silane-treated Chromosorb W coated with 2% Silicone DC QF-1; column temperature: Allethrin 135°C and Pathalthrin 170°C; injection temperature: 250°C and carrier: helium, 60ml/min.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 20 (7), 789-791, 1971

    The Japan Society for Analytical Chemistry

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