Application of the sulphide podand 1,12-Di-2-thienyl-2,5,8,11-tetrathiadodecane to the determination of silver in ores and tailings by solvent extraction-atomic absorption spectrometry
- 1 January 1987
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 112 (11) , 1623-1625
- https://doi.org/10.1039/an9871201623
Abstract
A method has been developed for the determination of silver in copper ores and tailings by AAS based on the solvent extraction of silver with 1,12-di-2-thienyl-2,5,8,11-tetrathiadodecane, an acyclic neutral ligand with six sulphur donor atoms (sulphide podand), in IBMK. The separation was carried out on samples dissolved in 2 M nitric acid in the presence of boric acid. The accuracy of the method was examined using standard reference materials [a copper-zinc ore and a copper (pyrite) ore]. An r.s.d. of 2.8–4.9% for 10–4–10–3% silver in ores was obtained.Keywords
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