揮発性誘導体化と熱イオン化検出器付きキャピラリーガスクロマトグラフィーを用いた排ガス及び熱分解ガス中のアルデヒド類の定量

DOI NDLデジタルコレクション Web Site Web Site 被引用文献2件

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タイトル別名
  • Determination of aldehydes in exhaust gas and thermal degradation emission using volatile derivatization and capillary GC with flame thermionic detector.
  • キハツセイ ユウドウタイカ ト ネツイオン

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抄録

A method for the determination of low-molecular weight aliphatic aldehydes in exhaust gas and thermal degradation emission was investigated. Aldehydes in sample gas (230 l) were collected by passing the gas at a flow rate of 0.5 l/min through two impingers connected in series. Each impinger contained 10 ml of ethanolic solution of O-pentafluorobenzylhydroxylamine at a concentration of 0.3 mg ml-1. After sampling, the absorption solution was diluted with ethanol to 20 ml and allowed to stand for 80 min at room temperature. A 10 ml portion of this solution and 20 ml of distilled water were mixed together. The mixture was passed through a Sep-Pak C18 cartridge. The derivatives in the cartridge were eluted with 1.5 ml of hexane and the eluate was analysed by capillary GC with a flame thermionic detector. Formaldehyde, acetaldehyde, propionaldehyde and butyraldehyde were determined easily and selectively without interference of ketones. The collection efficiencies for these compounds from the standard gas were more than about 90%. The determination limits were 14 ppb for formaldehyde, 10 ppb for acetaldehyde, 67 ppb for propionaldehyde and 38 ppb for butyraldehyde when 30 l sample gas was used.

収録刊行物

  • 分析化学

    分析化学 36 (6), 381-385, 1987

    公益社団法人 日本分析化学会

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