Analytical Performance of a Microsecond-pulse Glow Discharge Time of Flight Mass Spectrometer.

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  • Yang Pengyuan
    Department of Chemistry, Laboratory of Analytical Science, Xiamen University
  • Su Yongxuan
    Department of Chemistry, Laboratory of Analytical Science, Xiamen University
  • Zhou Zhen
    Department of Chemistry, Laboratory of Analytical Science, Xiamen University
  • Wang Xiaoru
    Department of Chemistry, Laboratory of Analytical Science, Xiamen University
  • Li Fumin
    Department of Chemistry, Laboratory of Analytical Science, Xiamen University
  • Huang Benli
    Department of Chemistry, Laboratory of Analytical Science, Xiamen University

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タイトル別名
  • Analytical Performance of a Microsecond

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抄録

In this work, the analytical performance of a microsecond-pulse glow discharge time of flight mass spectrometer (μs-pulse GD-TOFMS) is evaluated. By adjusting the delay time of repeller pulse, it is able to ignore significantly the background argon ions prior to the repelling of analytical ion pulse due to the repelled ion beam orthogonalized to the extracted ion beam, such that mass spectra are characterized by high discrimination against discharge gas species. The short-term relative standard deviation of 2.2% is achieved with 5-minute interval, which is found mainly up to the stability of discharge pressure. A fairly good resolving power of 220 has been reached for the linear mode mass spectrometer with a 1.25m drift tube. The potential of applying μs-pulse GD-TOFMS in isotope abundance measurement is studied, and the detection power of this μs-pulse GD-TOFMS is evaluated and some restricted problems are discussed.

収録刊行物

  • Analytical Sciences

    Analytical Sciences 13 (Supplement), 3-6, 1997

    社団法人 日本分析化学会

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