GAS CHROMATOGRAPH WITH A MASS SPECTROMETER SITUATED DOWN THEREFROM, AND METHOD FOR PERFORMING THE GAS CHROMATOGRAPHIC/MASS SPECTROMETRIC ANALYSIS OF A SUBSTANCE MIXTURE

摘要

The aim of the invention is to optimize the analysis of substances separated by gas chromatography with a gas chromatograph (1), comprising a separating device (7) and a mass spectrometer situated down therefrom (2). To this end, a detector (8) that detects the separated substances in a nondestructive manner is placed in-line between the output of the separating device (7) and a controllable inlet valve (12) of the mass spectrometer (2). An evaluating device (11) situated down from the detector evaluates the detector signals and, based on the evaluation, controls the inlet valve (12) for introducing predeterminable substances into the mass spectrometer (2).