The method of determining the isotope ratio and isotope ratio mass spectrometer

摘要

The present invention relates to a method for determining the ratio of at least one of the different isotopes of at least one element in the sample. By ionizing the sample, and an ion of different isotopes of one element method, at least: positive ions atomic valence many group consisting of monovalent positive ions for deuterium and monovalent cations for hydrogen to produce those selected from, be separated according to mass-to-charge ratio of these, the positively charged ions of different isotopes of one element, and at least one element of the separated in the previous step at least It includes determining a ratio of at least one of the isotopes of different. The present invention relates to apparatus for carrying out the above method.