FIELD: chemistry.
SUBSTANCE: method of determining copper involves direct potentiometric titration of complexon (III) at pH 4.1-9.0 with an indicator electrode of bismuth metal in an acetate buffer solution. The invention enables to determine copper (II) when its content is 32-660 mcg/ml of the solution in an electrochemical cell with unit determination error of not more than 1%.
EFFECT: easy analysis using nontoxic materials.
2 tbl, 1 dwg, 1 ex
| Title | Year | Author | Number |
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|
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