BSI DD 95-5:1986
$86.31
Analysis of higher purity copper cathode Cu-CATH-1 – Method for determination of sulphur by hydrogen sulphide evolution and spectrophotometry
| Published By | Publication Date | Number of Pages |
| BSI | 1986 | 10 |
Sulphur concentrations from 5 μg/g to 30 μg/g. Dissolution 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.
