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
ANALYSTANALYST Pub Date: DOI: 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.
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Journal Name：ANALYSTANALYST
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CAS no.: 89640-58-4
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