Potentiometric titration of gold in ores with potassium iodide

A direct potentiometric titration method for the determination of gold in ores and alloys is described. It is based on the reduction of Au(III) with iodide ions yielding accurate and reproducible results. Detection limit and sensitivity were 0.06 and 0.032 mg/l Au, respectively. The linear response...

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Published in:Fresenius' Journal of Analytical Chemistry 1993-01, Vol.345 (6), p.441-444
Main Authors: ROBLES, L. C, GARCIA-OLALLA, C, ALLER, A. J
Format: Article
Language:English
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Analytical chemistry
Chemistry
Electrochemical methods
Exact sciences and technology
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description A direct potentiometric titration method for the determination of gold in ores and alloys is described. It is based on the reduction of Au(III) with iodide ions yielding accurate and reproducible results. Detection limit and sensitivity were 0.06 and 0.032 mg/l Au, respectively. The linear response range was between 0.1-120 mg /l Au. The method can be used for the routine assay of Au in different kind of samples.
doi_str_mv 10.1007/BF00325623
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ispartof Fresenius' Journal of Analytical Chemistry, 1993-01, Vol.345 (6), p.441-444
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1432-1130
1618-2650
language eng
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subjects Analytical chemistry
Chemistry
Electrochemical methods
Exact sciences and technology
title Potentiometric titration of gold in ores with potassium iodide
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