A selective reagent for the spectrophotometric determination of palladium
- 1 January 1977
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 102 (1210) , 25-28
- https://doi.org/10.1039/an9770200025
Abstract
A spectrophotometric method for the determination of trace amounts of palladium(II) with ethyl 3-phenyl-5-isoxazolone-4-carboxylate was developed. With this reagent, palladium forms a yellow complex, stable in the pH range 1–6.5, which is extractable into 4-methylpentan-2-ol from 0.05–4 M perchloric acid medium. The coloured complex adheres to Beer's law at 370 nm in aqueous and in 4-methylpentan-2-ol solutions, with molar absorptivities of 3.5 × 103 and 3.9 × 103 l mol–1 cm–1, respectively. Other platinum-group metals do not interfere. In the presence of highly coloured ions, extraction with 4-methylpentan-2-ol eliminates all interferences. Cyanide ions interfere in the method.Keywords
This publication has 0 references indexed in Scilit: