Extraction and spectrophotometric determination of bismuth(III) with N-m-tolyl-p-chlorobenzohydroxamic acid and xylenol orange
- 1 January 1984
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 109 (10) , 1287-1289
- https://doi.org/10.1039/an9840901287
Abstract
A solvent extraction and spectrophotometric method for the determination of microgram amounts of bismuth(III) is described. The bismuth(III) is extracted at pH 4.5 with N-m-tolyl-p-chlorobenzohydroxamic acid and forms a mixed complex with xylenol orange, which gives a red colour, λmax. 530 nm and molar absorptivity 2.0 × 104 l mol–1 cm–1. Bismuth has been determined in alloy and pharmaceutical samples.Keywords
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