AN EVALUATION OF THE USE OF THE CHROMOUS CHLORIDE REDUCTION METHOD FOR ISOTOPIC ANALYSES OF PYRITE IN ROCKS AND SEDIMENT

Abstract

The use of chromous chloride reduction as a preparation technique for isolation of pyrite sulphur for isotopic analysis has been assessed. A small but consistent fractionation is introduced by reduction of pyrite to H2S, enriching the yield in 34S by 0.55 +/- 0.14%%.