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Extraction-Spectrophotometric Determination of Palladium with 3-Thiophenaldehyde-4-phenyl-3-thiosemicarbazone

✍ Scribed by K. Uesugi; L.J. Sik; H. Nishioka; T. Kumagai; T. Nagahiro

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
215 KB
Volume
50
Category
Article
ISSN
0026-265X

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✦ Synopsis

A highly selective spectrophotometric method is described for the determination of palladium, using 3-thiophenaldehyde-4-phenyl-3-thiosemicarbazone (TAPS). The method is based on the formation of an insoluble palladium(II)-TAPS complex, which is extractable into chloroform from (1 M) sulfuric acid medium after shaking for (10 \mathrm{~min}). The complex system conforms to Beer's law over the concentration range (0.4-6 \mu \mathrm{g} \mathrm{ml}^{-1}) of palladium. The proposed method has been satisfactorily applied to the determination of palladium in brazing filler metals. 1994 Academic Press, Inc.

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