大気中の微量成分分析へのマスフィルタ-の適用-2-多成分同時分析の可能性とその問題点

概要

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Applicability of the mass filter system to simultaneous analysis of multi-components was examined by introducing a gaseous sample containing ppm order components of three sulfides CS2 CH3SH and H2S in N2 diluent. The sample gas was prepared by using a standard gas effluent system based on the permeation principle and introduced directly to the analyzer system through a glass capillary leak. Reasonably good response be tween the peak heights and the concentrations was obtained for the three components in the range studied, 3087640.3ppm for CS2, 2087645ppm for CH3SH and 3087643ppm for H2S. Deviations from the linear response, however, were found in the range below 287643ppm for the CH3SH and H2S components. The deviations probably arise from adsorption and reaction of the components on the inner surfaces of the glass and stainless steel pipe for the sample introduction. The present results indicate the good adaptability of the mass filter system to simultaneous analysis of multi-components and also suggest the importance of sample introduction procedure in trace component analysis.
日本質量分析学会の論文