FIELD: analytical chemistry.
SUBSTANCE: claimed method includes organic mixture blending with gold chloride of known concentration being exceed in relates to sulfur content at optimum aqueous phase acidity of 0.3-0.5 M hydrochloric acid, followed by aqueous phase separation from organic one and organic phase washing with 0.2-0.5 M nitric acid solution. Then specific activity of gold containing radioactive isotope 198Au or 195Au in organic phase is measured and search value of sulfur content according to respective equation is calculated.
EFFECT: accelerated analysis method with increased accuracy and detection limit.
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