| 摘要 |
The invention relates to electro-chemical methods of analysis, in particular to ion-selective determination of osmium (VI) in complicated technological objects. Method to obtain membrane of ion-selective electrode for determination of osmium includes obtaining electrode-active substance through deposition of low-soluble salt with ratio of metal and sulfur-obtaining organic reagent in presence of inorganic acid with following either filtration and drying, or separation from water solution with organic solvent and rectification of organic solvent. The low-soluble salt named above is obtained as result of interaction of osmium (VІ) with 3-methyl-2, 6-dimercapto-1, 4-thyopyrone in presence of chloride or sulfate acid. To make membrane one impregnates to carbon-graphite paste 0.001- of electrode-active substance. Technical result of the invention is in possibility of determination of osmium. |
