GC-CI-MS用積分方式TIM
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概要
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The integration method of recording the chromatogram for GC-CI-MS system is descrived. The chromatogram of a trace component, especially of less than 100ng, is hardly obtainable by the ordinary TIM system. With this integration TIM system(ITIM), the chromatograms of GC-CI mode are improved by integrating the ion sighal of individual masses except for the CI reactant ions in CI mass spectra. The chromatograms of methyl stearate, using 50ng and 20ng respectively, are shown by GC-CI-MS. The calibration curve of methyl stearate in the range of 2 to 100ng shows good linearity of this ITIM. Several mixtures are successfully analyzed by this technique.
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