Sorption preconcentration and separation of palladium for visual test and densitometric determination

We have demonstrated the advantages of the dynamic preconcentration and separation of Pd(II) and Pt(IV) on paper carriers modified with 3-methyl-2,6-dimercapto-1,4-thiopyrone. The optimal conditions of the solid-phase reaction have been determined in Pd(II) sorption; after its separation Pt(IV), has...

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Bibliographic Details
Published inJournal of analytical chemistry (New York, N.Y.) Vol. 68; no. 5; pp. 409 - 416
Main Authors Chmilenko, F.A, Khudyakova, S.N
Format Journal Article
LanguageEnglish
Published Springer 01.05.2013
Subjects
Chemical properties
Densitometry
Identification and classification
Methods
Palladium
Platinum
Separation (Technology)
Sorption
Ukraine
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Summary:We have demonstrated the advantages of the dynamic preconcentration and separation of Pd(II) and Pt(IV) on paper carriers modified with 3-methyl-2,6-dimercapto-1,4-thiopyrone. The optimal conditions of the solid-phase reaction have been determined in Pd(II) sorption; after its separation Pt(IV), has been preconcentrated by sorption as its dimercaptides. Test scales have been produced for the visual determination of 0.5-40 µg Pd(II) and 1-195 µg Pt(IV) in 10- and 100 mL-samples, respectively. In addition, a procedure of their sorption--chromaticity densitometry determination from a single aliquot portion has been developed with detection limits of 5 and 1 ng/mL, respectively, and a procedure of Pd(II) determination using a test strip ([c.sub.min] = 0.40 mg/L) has been proposed. The procedures have been applied to the determination of palladium and platinum in electrolytes, sludges, and alloys.
ISSN:1061-9348
1608-3199
DOI:10.1134/S1061934813050055