BSI DD 95-5:1986

Withdrawn Revision
Analysis of higher purity copper cathode Cu-CATH-1 -- Method for determination of sulphur by hydrogen sulphide evolution and spectrophotometry

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BSI DD 95-5:1986

Analysis of higher purity copper cathode Cu-CATH-1 -- Method for determination of sulphur by hydrogen sulphide evolution and spectrophotometry

PUBLISH DATE 1986
PAGES 10
BSI DD 95-5:1986

Sulphur concentrations range from 5 μg/g to 30 μg/g.

Dissolution occurs in a reducing acid containing antimony, which reduces the sulphur to hydrogen sulphide.

The hydrogen sulphide is converted to zinc sulphide, which is then measured photometrically as methylene blue.

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