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Determination of platinum(IV) by UV spectrophotometry

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Abstract

A simple, rapid and sensitive spectrophotometric procedure for the determination of platinum has been elaborated. Pt traces were determined in the form of the PtCl6 2− complex in hydrochloric acid solution whose concentration varies from 0.01 to 2 mol L−1 by measuring the absorbance at 260 nm. The detection limit is 4.7×10−7 mol L−1, the linearity range from 2×10−6 mol L−1 to 7×10−6 mol L−1, and the correlation coefficient is r=0.9990. No significant interferences were observed from a majority of the investigated ions, such as Zn(II), Pb(II), Mn(II), Cd(II), Co(II) and Ni(II) with the exception of Cu(II), Sb(III), Fe(III), Pd(II), Sn(II) and I− ions. The method was successfully applied for the determination of Pt traces in different solid samples and the recovery from inorganic materials was studied.

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Acknowledgements

The authors gratefully acknowledge the support of the Ministry of Education and Science of the Republic of Macedonia and the Ministry of Education, Science and Sport of the Republic of Slovenia.

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  1. Institute of Chemistry, Faculty of Science, St. Cyril and Methodius University, Skopje, Republic of Macedonia

    M. Georgieva & B. Andonovski

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  1. M. Georgieva
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  2. B. Andonovski
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Correspondence to M. Georgieva.

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Georgieva, M., Andonovski, B. Determination of platinum(IV) by UV spectrophotometry. Anal Bioanal Chem 375, 836–839 (2003). https://doi.org/10.1007/s00216-003-1783-7

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