Bulletin of the Korean Chemical Society

  • 제10권6호
  • /
  • Pages.524-529
  • /
  • 1989
  • /
  • 0253-2964(pISSN)
  • /
  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Direct Anlysis of Impurities in Solides with Glow Discharge Mass Spectrometry

  • Ki Beom Lee (Inorgan. Anal. Chem. Lab., Korea Standards Research Institute) ;
  • Dae Won Moon (Inorgan. Anal. Chem. Lab., Korea Standards Research Institute) ;
  • Kwang Woo Lee (Inotgan. Anal. Chem. Lab., Korea Standards Research Institute)
  • 발행 : 1989.12.20
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초록

A glow discharge mass spectrometric(GDMS) analytical method was developed for direct analysis of impurities in solids. Ions extracted from a glow discharge ion source with a sample as a cathode were analyzed by a quadrupole mass filter. Ion extractions were carried out through differentially-pumped orifices biased to positive and negative potentials. Operating parameters of the glow discharge source such as discharge current, orifice-to-cathode distance, energy analyzer setting and bias voltages have been optimized. The developed GDMS was applied to the analysis of KSS copper-base alloy standards certified by Korea Standards Research Institute(KSRI). In the analysis, the reproducibility and the detection limits were estimated to be about 2.5% RSD, and in the low ppm range, respectively.

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