Rapid simultaneous determination of ruthenium and osmium in aqueous solutions of their tetroxides by second-order derivative spectrophotometry

Maria Balcerzak , Elżbieta Święcicka-Fuchsel

Abstract

Direct and simple spectrophotometric methods for the simultaneous determination of ruthenium and osmium in aqueous solutions of their tetroxides are described. The methods are based on the calculation of derivative spectra of RuO4and OsO4 in water. The second-order derivative values of RuO4 at 310 nm (the ‘zero-crossing’ point of osmium) and of OsO4 at 250 nm (the ‘zero-crossing’ point of ruthenium) can be used for the determination of the concentration of ruthenium and osmium, respectively. Beer's law is obeyed up to 32 μg Ru ml−1 and 40 μg Os ml−1 in the examined solutions. Using the developed methods 97.3 μg Ru ml−1 and 95.8 μg Os ml−1 in a plasma standard solution of the noble metals were determined.
Author Maria Balcerzak (FC / CAC)
Maria Balcerzak,,
- Chair Of Analytical Chemistry
, Elżbieta Święcicka-Fuchsel (FC / CAC)
Elżbieta Święcicka-Fuchsel,,
- Chair Of Analytical Chemistry
Journal seriesAnalytica Chimica Acta, ISSN 0003-2670
Issue year1997
Vol349
No1–3
Pages53-57
Keywords in EnglishDerivative spectrophotometry, Noble metals analysis, Osmium, Ruthenium, spectrophotometry
ASJC Classification1607 Spectroscopy; 2304 Environmental Chemistry; 1303 Biochemistry; 1602 Analytical Chemistry
DOIDOI:10.1016/S0003-2670(97)00251-1
URL http://www.sciencedirect.com/science/article/pii/S0003267097002511
Score (nominal)40
Score sourcejournalList
Publication indicators GS Citations = 9.0; Scopus SNIP (Source Normalised Impact per Paper): 1999 = 1.182; WoS Impact Factor: 2006 = 2.894 (2) - 2007=3.348 (5)
Citation count*9 (2013-01-30)
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