Process for the analysis of gaseous components by mass spectrometry

摘要: Background of the invention is isotope ratio analysis carbon and nitrogen as components hydrocarbon compounds. The separation into individual takes place in a gas chromatograph oxydation downstream combustion oven, into, inter alia CO2 N2. In general present much larger quantity than measurement values on mass spectrometer have accordingly different dimensions. order to approximate peak values, dilution with additional helium carrier CO2. This has advantage that gas, which anyway, result approximately equal quantities relative N2 ion source spectrometer. region so-called open split (18).