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Ion-selective electrodes for gold and silver determination
O M Petrukhin1, E N Avdeeva, Y V Shavnya
1D. I. Mendeleev Moscow Chemical Technology Institute, Moscow, USSR.
Talanta
|January 1, 1987
Summary
New ion-selective electrodes for silver and gold determination were developed using ion-associate species. These electrodes offer a reliable method for analyzing precious metals in industrial process solutions.
Area of Science:
- Electroanalytical Chemistry
- Materials Science
Background:
- Accurate determination of precious metals like silver and gold is crucial in various industrial processes.
- Existing analytical methods may have limitations in sensitivity, selectivity, or applicability to complex matrices.
Purpose of the Study:
- To develop and characterize novel ion-selective electrodes (ISEs) for the quantitative analysis of silver and gold.
- To investigate the performance of these ISEs in real-world industrial samples.
Main Methods:
- Synthesis of ion-associate species involving metal-cyanide, -chloride, or -thiourea complexes and hydrophobic counter-ions.
- Fabrication and electrochemical characterization of ISEs based on these ion-associate species.
- Application of the developed electrodes for potentiometric determination of silver and gold in industrial process solutions.
Main Results:
- The newly developed ISEs demonstrated good selectivity and sensitivity for silver and gold ions.
- The electrodes exhibited stable performance and a wide linear response range.
- Successful application of the electrodes for the determination of silver and gold in complex industrial samples was achieved.
Conclusions:
- The developed ion-selective electrodes represent a promising advancement for the on-site analysis of silver and gold.
- These electrodes offer a practical and efficient tool for quality control and process monitoring in industries dealing with precious metals.
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