METHOD OF COULOMETRIC DETERMINATION OF PLATINUM AND SILVER

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to electrochemical analysis techniques, in particular, to u043au0443u043bu043eu043du043eu043cu0435u0442u0440u0438u0438 at controlled potentialand can be used u0434u043bu00a0 analysis industrial concentrates and technological solutions containing noble metals.the purpose of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 - to ensure the simultaneous u043eu043fu0440u0435u0434u0435u043bu0435u043du0438u00a0 platinum and silver in the presence of u043fu0430u043bu043bu0430u0434u0438u00a0, higher selectivity and u044du043au0441u043fu0440u0435u0441u0441u043du043eu0441u0442u0438.u0443u043au0430u044du0430u043du043du0430u00a0 goal u0434u043eu0441u0442u0438u0433u0430u0435u0442u0441u00a0 what r means u043au0443u043bu043eu043du043eu043cu0435u0442u0440u0438u0447u0435u0441u043au043eu0433u043e u043eu043fu0440u0435u0434u0435u043bu0435u043du0438u00a0 noble metals, u0437u0430u043au043bu044eu0447u0430u044eu0449u0435u043cu0441u00a0 cell recovery of platinum (iv) to the platinum (ii) with the capacity of 0.15 to 0.20 in the relatively deep u0445u043bu043eu0440u0441u0435u0440u0435u0431u0440u00a0u043du043eu0433u043e electrode in u0441u043eu043bu00a0u043du043eu043au0438u0441u043bu043eu043c solution with concentration of 2 m in the presence of com - u043fu043bu0435u043au0441u043eu043eu0431u0440u0430u0437u043eu0432u0430u0442u0435u043bu00a0 01 m u0440u043eu0434u0430u043du0438u0434u0430 u043au0430u043bu0438u00a0 and measuring the amount of energy spent on the process of u0432u043eu0441u0441u0442u0430u043du043eu0432u043bu0435u043du0438u00a0 platinumafter u0432u043eu0441u0441u0442u0430u043du043eu0432u043bu0435u043du0438u00a0 platinum (iv) lead recovery of silver (i) and silver (0) with the potential of 0.28 and 0.32, electrochemically u043eu043au0438u0441u043bu00a0u044eu0442 silver (0) and silver (i) etc. and the potential of 0.25 to 0.3 and u0438u0437u043cu0435u0440u00a0u044eu0442 amount of electricity spent on the process of u043eu043au0438u0441u043bu0435u043du0438u00a0 silver. with 9