Determination of iron(III) and copper(II) by zeroth, first and second derivative spectrophotometry with 2-thiobarbituric acid (4,6-dihydroxy-2-mercaptopyrimidine) as reagent
- 1 January 1983
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 108 (1288) , 870-879
- https://doi.org/10.1039/an9830800870
Abstract
Sensitive methods for the determination of iron(III) alone and of iron(III) and copper(II) in mixtures, using 4,6-dihydroxy-2-mercaptopyrimidine (2-thiobarbituric acid), by normal and derivative spectrophotometry have been studied and compared experimentally. Fundamental conditions for the determination and the composition of the iron(III)- 2-thiobarbituric acid complex are discussed. A statistical analysis of the results is reported.Keywords
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