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PERFORMING CHEMICAL REACTIONS AND/OR IONIZATION DURING GAS CHROMATOGRAPHY-MASS SPECTROMETRY RUNS
PERFORMING CHEMICAL REACTIONS AND/OR IONIZATION DURING GAS CHROMATOGRAPHY-MASS SPECTROMETRY RUNS
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机译:气相色谱-质谱分析运行期间进行的化学反应和/或电离
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摘要
A gas chromatography-mass spectrometry (GC-MS) method that includes performing a first GC-MS run on a sample using a gas chromatography-mass spectrometry system. Performing the first GC-MS nm includes i) passing a first flow of a carrier gas carrying a first portion of the sample through a gas chromatograph to provide a first effluent; ii) generating first ions under protonation conditions by passing the first effluent through an atmospheric pressure ionization source; iii) passing the first ions through a mass spectrometer; and iv) recording first GC-MS data for the first ions. The method also include performing a second GC-MS run on the sample using the gas chromatography-mass spectrometry system.
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