Method for Determining the Sulfur Isotopic Composition in Ultramafic-Mafic Rocks with a Low Sulfur Content

Abstract

The method of sample decompounding and silver sulfide precipitation for determination of the isotopic composition of sulfur by isotope mass spectrometry has been tried out and improved. The analytics and methodology of preparing test samples for analysis are described, task variations are indicated. The validity of the developed method of sample preparation was verified by a comparative analysis of various methods in three laboratories using internationally certified standards.