原子スペクトル分析における気相試料導入法の基礎的研究

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タイトル別名
  • Fundamental studies on gas-phase sample introduction techniques in analytical atomic spectrometry.
  • ゲンシ スペクトル ブンセキ ニ オケル キソウ シリョウ ドウニュウホウ ノ

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抄録

Some results of fundamental studies on gas-phase sample introduction methods in analytical atomic spectroscopy, i.e., atomic absorption, atomic emission and atomic fluorescence spectrometry, are reviewed on the basis of a series of researches carried out in the author's laboratory. The gas-phase sample introduction techniques can be divided into three groups: i) hydride generation, ii) cold-vapor generation of mercury and iii) analyte volatilization reactions. The analytical figures of merit of the gas-phase sample introduction methods have been described in detail. Hydride generation method has been coupled with atomic absorption spectrometry of arsenic, bismuth, germanium, lead, antimony, selenium, tin and tellurium, with inductively coupled plasma (ICP) atomic emission spectrometry of arsenic, tin, selenium, antimony and bismuth, and with fluorescence spectrometry of arsenic, antimony, bismuth, selenium, tellurium, lead and tin. Cold-vapor generation method for mercury has been combined with atmospheric pressure helium microwave induced plasma (MIP) atomic emission spectrometry and atomic fluorescence spectrometry. Furthermore, analyte vaporization reactions have been employed in ICP atomic emission spectrometry of iodine and in MIP atomic emission spectrometry of iodine and bromine. As a result, when compared with conventional solution nebulization, a great improvement in sensitivity has been attained in each instance. In addition, the present techniques coupled with analytical atomic spectrometry have been successfully applied to the determination of trace elements in a variety of practical samples.

収録刊行物

  • 分析化学

    分析化学 41 (2), 65-81, 1992

    公益社団法人 日本分析化学会

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