COMPOSITION OF MEMBRANE FOR ION-SELECTIVE ELECTRODE FOR DETERMINING ACTIVITY OF ION OF FE(III)

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to analytical chemistry and is intended u0434u043bu00a0 u043fu043eu0442u0435u043du0446u0438u043eu043cu0435u0442u0440u0438u0447u0435u0441u043au043eu0433u043e u043eu043fu0440u0435u0434u0435u043bu0435u043du0438u00a0 u0441u043eu0434u0435u0440u0436u0430u043du0438u00a0 fe (iii) ions in aqueous solutions. purpose u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 u00a0u0432u043bu00a0u0435u0442u0441u00a0 increased selectivity and lower limit u043eu0431u043du0430u0440u0443u0436u0435u043du0438u00a0 cations, fe (iii).the composition contains as active substance u044du043bu0435u043au0442u0440u043eu0434u043du043e u043au0440u0438u043fu0442u0430u043du0434 3.12 - dimethyl - 1,3,12,14 - u0442u0435u0442u0440u0430u0430u0437u0430 - 6,9,17,20,25 - u043fu0435u043du0442u0430u043eu043au0441u0430u0431u0430u0446u0438u043au043bu043e [12,8,5] - u0433u0435u043fu0442u0430u043au043eu0437u0430u043d - 2.13 - dion, as well as is inert the u043du0430u043fu043eu043bu043du0438u0442u0435u043bu00a0 polyvinyl chloride and bis - (1 - butyl and pentyl) - u0430u0434u0438u043fu0430u0442 in the ratio of 1: 2 (mas.%).the membrane also includes u0442u0435u0442u0440u0430u0444u0435u043du0438u043bu0431u043eu0440u0430u0442 u043au0430u043bu0438u00a0 that provides the range of concentrations of fe (iii), with the following ratio: electronic components, mas. people's active substance 0.01 - 10;u0442u0435u0442u0440u0430u0444u0435u043du0438u043bu0431u043eu0440u0430u0442 u043au0430u043bu0438u00a0 00075 7.5;the rest of the inert filler. 1 u0438u043b., 1 table.