Bestimmung von iridiumspuren mit thiodibenzoylmethan mittels substöchiometrischer isotopenverdünnungs-analyse: Determination of traces of iridium with thiodibenzoylmethane by substoichiometric isotope dilution analysis |
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Authors: | G Robisch W Bansse E Ludwig |
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Institution: | Sektion Chemie/Biologie der Pädagogischen Hochschule “Karl Liebknecht” Potsdam, DDR-15 PotsdamG.D.R. |
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Abstract: | Determination of traces of iridium with thiodibenzoylmethane by substoichiometric isotope dilution analysisIridium(III or IV) reacts with thiodibenzoylmethane on heating at pH 6 to form a 1:3 complex, which can be concentrated by extraction into chloroform. Based on this reaction, a reproducible, selective determination of iridium is achieved by means of substoichiometric isotope dilution analysis, based on 192Ir. The linear range is 1–11 nmol of iridium. |
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