Extraction spectrophotometric determination of rhodium(III) with o-methylphenyl thiourea

Title
Extraction spectrophotometric determination of rhodium(III) with o-methylphenyl thiourea
Authors
한성환
Keywords
Rhodium(III); o-Methylphenyl thiourea; Mutual separation: palladium(II), rhodium(III), platinum(IV) and iridium(III); Synthetic mixtures
Issue Date
2015-07
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF SAUDI CHEMICAL SOCIETY, v. 19, NO 6, Page. 616-627
Abstract
Trivalent rhodium was determined spectrophotometrically as its 1: 2 rhodium o-methylphenyl thiourea (OMPT) complex, extracted into chloroform from aqueous acetate buffer media at pH 5.4. The complex exhibits maximum absorption at 320 nm (Molar absorptivity 9.76 x 10(3) L mol (-1) cm(-1)), Sandell's sensitivity 0.0105 mu g of rhodium(III) cm(-2). Beer's law obeyed up to 10.0 mu g/ml. The method is free from a large number of interferences from cations and anions. The method is simple, selective and reproducible. It permits separation and determination of rhodium(III) from synthetic mixtures corresponding to alloys. A scheme for mutual separation of palladium(II), rhodium( III), platinum(IV) and iridium(III) has been developed. (C) 2012 Production and hosting by Elsevier B.V. on behalf of King Saud University.
URI
http://www.sciencedirect.com/science/article/pii/S1319610312000609http://hdl.handle.net/20.500.11754/26320
ISSN
1319-6103; 2212-4640
DOI
http://dx.doi.org/10.1016/j.jscs.2012.04.013
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
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