Process for the mass spectroscopy online determination of oxygen isotope compositions comprises adding halogen compounds to the sample, treating, transferring to a gas chromatograph and then to a mass spectrometer

摘要

Process for the mass spectroscopy online determination of oxygen isotope compositions comprises adding halogen compounds to the sample, carrying out high temperature treatment in the presence of carbon and a catalyst, transferring to a gas chromatography column and feeding the carbon monoxide produced to a mass spectrometer after removing the pyrolysis products. Preferred Features: Organic halogen compounds, metal halides or non-metal halides are added to the sample. The halogen compound is added in a ratio of 1: 1-500 in excess. The halogen compounds have a grain size in the mu m range.