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A simple flow injection spectrophotometric determination method for iron(III) based on O -acetylsalicylhydroxamic acid complexation
Andac, Muberra, Asan, Adem and Isildak, Ibrahim A simple flow injection spectrophotometric determination method for iron(III) based on O -acetylsalicylhydroxamic acid complexation Chemical Papers, Vol.63, No. 3, 2009, 268-273
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Document type:
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Článok z časopisu / Journal Article |
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Collection:
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Chemical papers
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| Author(s) |
Andac, Muberra
Asan, Adem
Isildak, Ibrahim
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| Title |
A simple flow injection spectrophotometric determination method for iron(III) based on O -acetylsalicylhydroxamic acid complexation
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| Journal name |
Chemical Papers
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| Publication date |
2009
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| Year available |
2009
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| Volume number |
63
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| Issue number |
3
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| ISSN |
0366-6352
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| Start page |
268
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| End page |
273
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| Place of publication |
Poland
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| Publisher |
Versita
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| Collection year |
2009
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| Language |
english
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| Subject |
250000 Chemical Sciences
250200 Inorganic Chemistry
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| Abstract/Summary |
A simple and rapid flow-injection spectrophotometric method for the determination of iron(III) and total iron is proposed. The method is based on the reaction between iron(III) and O-acetylsalicylhydroxamic acid (AcSHA) in a 2 % methanol solution resulting in an intense violet complex with strong absorption at 475 nm. Optimum conditions for the determination of iron(III) and the interfering ions were tested. The relative standard deviation for the determination of 5 μg L−1 iron(III) was 0.85 % (n = 10), and the limit of detection (blank signal plus three times the standard deviation of the blank) was 0.5 μg L−1, both based on the injection volumes of 20 μL. The method was successfully applied in the determination of iron(III) and total iron in water and ore samples. The method was verified by analysing a certified reference material Zn/Al/Cu 43XZ3F and also by the AAS method.
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