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Journal of Analytical Chemistry

, Volume 58, Issue 8, pp 750–755 | Cite as

High-Sensitivity Determination of Hydrocarbon Impurities in Arsine by Reaction Gas Chromatography

  • V. A. Krylov
  • O. Yu. Chernova
  • Yu. M. Salganskii
  • L. S. Malygina
  • A. P. Kotkov
Article

Abstract

It is shown that the results of determining methane in high-purity arsine by reaction gas chromatography can be overestimated by more than two orders of magnitude. This overestimation is caused by the formation of methane as a side product of the reaction. Cryogenic preconcentration at the injection stage is proposed to improve the accuracy of determination of methane, and the cryofocusing of impurity hydrocarbons is proposed to improve separation. Detection limits of (3–10) × 10–6 vol % are achieved for C1–C5 hydrocarbons.

Keywords

Chromatography Methane Analytical Chemistry Hydrocarbon Detection Limit 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© MAIK “Nauka/Interperiodica” 2003

Authors and Affiliations

  • V. A. Krylov
    • 1
  • O. Yu. Chernova
    • 2
  • Yu. M. Salganskii
    • 2
  • L. S. Malygina
    • 2
  • A. P. Kotkov
    • 2
  1. 1.Chemistry DepartmentN.I. Lobachevskii Nizhni Novgorod State UniversityNizhni NovgorodRussia
  2. 2.Institute of Chemistry of High-Purity SubstancesRussian Academy of SciencesNizhni NovgorodRussia

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