Analytical Sciences

Experimental Investigations of Trimer Ion Contributions in the Low Resolution Mass Spectrometry of Hydrogen Isotope Mixtures

Nicolae BIDICA

National Research and Development Institute for Cryogenics and Isotopic Technologies—ICSI Ramnicu Valcea, Uzinei Street, No. 4, Ramnicu Valcea, RO 240050, Romania

This paper reports on some preliminary experimental results of a work in progress regarding a problem involving the quantitative analysis of hydrogen isotopes by mass spectrometry of low resolution: the triatomic (trimer) ions interferences with the isotopic hydrogen species having the same mass/charge. These results indicate that, in complex mixtures of hydrogen isotopes, trimer ions are strongly affected by the presence of other species, and a new approach that takes into account the destruction mechanism of trimer ions is necessary for a proper determination of their contributions.

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