Determination of platinum in mineral raw materials by switching chronoamperometry; IOP Conference Series: Earth and Environmental Science; Vol. 21: XVIII International Scientific Symposium in Honour of Academician M. A. Usov: Problems of Geology and Subsurface Development 7–11 April 2014, Tomsk, Russia
| Parent link: | IOP Conference Series: Earth and Environmental Science Vol. 21: XVIII International Scientific Symposium in Honour of Academician M. A. Usov: Problems of Geology and Subsurface Development 7–11 April 2014, Tomsk, Russia.— 2014.— [012031, 5 p.] |
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| Autor principal: | |
| Autor corporatiu: | , , |
| Altres autors: | , |
| Sumari: | Title screen Determination of platinum in mineral raw materials by switching chronoamperometry Nowadays the majority of conventional precious metal deposits have been exhausted. Therefore, it is necessary to search for alternative composite sources with poor ores. However, the interest to such deposits in recent years has revealed serious difficulties in the analytical base in the process of the platinum group metals content assessment in this type of mineral raw materials. It is connected, first of all, with the deficiency of high sensitivity and good reproducibility techniques of analyses. Besides, large scattering and low content of precious metals in minerals and rocks are also concerned [1]. Several ways of platinum determination have been suggested by means of using a highly sensitive method of stripping voltammetry [2, 3, 4]. However, this method is complex and multistage, because the determination of platinum (II or IV) in solutions with anodic stripping voltammetry is feasible only after the platinum electrodeposition in an alloy with a metal-activator on the surface of the graphite electrode with the following selective electrooxidation from the electronegative component alloy. Until recently the application of the simplest express way of platinum determination obtained in chloride complexes by switching chronoamperometry has been complicated by its low sensitivity. The purpose of the study is to develop the platinum determination technique in mineral raw materials with the application of switching chronoamperometry by means of the limiting impulse current testing for platinum (IV) in the solution. Режим доступа: по договору с организацией-держателем ресурса |
| Idioma: | anglès |
| Publicat: |
2014
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| Col·lecció: | High Technologies in Raw Hydrocarbon and Mineral Conversion |
| Matèries: | |
| Accés en línia: | http://iopscience.iop.org/1755-1315/21/1/012031 |
| Format: | Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=638276 |
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| 200 | 1 | |a Determination of platinum in mineral raw materials by switching chronoamperometry |f E. G. Pakrieva, Yu. A. Oskina, E. M. Ustinova | |
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| 225 | 1 | |a High Technologies in Raw Hydrocarbon and Mineral Conversion | |
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| 330 | |a Determination of platinum in mineral raw materials by switching chronoamperometry Nowadays the majority of conventional precious metal deposits have been exhausted. Therefore, it is necessary to search for alternative composite sources with poor ores. However, the interest to such deposits in recent years has revealed serious difficulties in the analytical base in the process of the platinum group metals content assessment in this type of mineral raw materials. It is connected, first of all, with the deficiency of high sensitivity and good reproducibility techniques of analyses. Besides, large scattering and low content of precious metals in minerals and rocks are also concerned [1]. Several ways of platinum determination have been suggested by means of using a highly sensitive method of stripping voltammetry [2, 3, 4]. However, this method is complex and multistage, because the determination of platinum (II or IV) in solutions with anodic stripping voltammetry is feasible only after the platinum electrodeposition in an alloy with a metal-activator on the surface of the graphite electrode with the following selective electrooxidation from the electronegative component alloy. Until recently the application of the simplest express way of platinum determination obtained in chloride complexes by switching chronoamperometry has been complicated by its low sensitivity. The purpose of the study is to develop the platinum determination technique in mineral raw materials with the application of switching chronoamperometry by means of the limiting impulse current testing for platinum (IV) in the solution. | ||
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