Spectrophotometric determination of platinum with iodide and pyronine G

Spectrophotometric determination of platinum with iodide and pyronine G

A sensitive and selective spectrophotometric procedure for the determination of platinum is described. The method is based on the interaction of Pyronine G with the hexaiodoplatinate (IV) anion to form a pink product that is stable for 24 h when stabilised with gelatin. Platinum concentrations as lo...

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Veröffentlicht in:Analyst (London) 1984-01, Vol.109 (11), p.1405-1407
Hauptverfasser: Jaya, Sambamoorthy, Rao, Talasila Prasada, Ramakrishna, Tiruvesaloor Venkatrama
Format: Artikel
Sprache:eng
Schlagworte:
Analytical chemistry
Chemistry
Exact sciences and technology
Spectrometric and optical methods
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Zusammenfassung:A sensitive and selective spectrophotometric procedure for the determination of platinum is described. The method is based on the interaction of Pyronine G with the hexaiodoplatinate (IV) anion to form a pink product that is stable for 24 h when stabilised with gelatin. Platinum concentrations as low as 0.02 p.p.m. can be readily determined. The method is precise and has been applied to the determination of platinum in synthetic alloys and mineral samples and palladium foil. 10 ref.--AA
ISSN:0003-2654
1364-5528
DOI:10.1039/AN9840901405