METHOD OF EXTRACTION PHOTOMETRIC DETERMINATION OF BORON

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to analytical chemistry, namely the ways of u044du043au0441u0442u0440u0430u043au0446u0438u043eu043du043du043e - photometric u043eu043fu0440u0435u0434u0435u043bu0435u043du0438u00a0 bora, and can be used in the analysis of different x natural objects, including mineral waters. purpose u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 u00a0u0432u043bu00a0u0435u0442u0441u00a0 sensation u043eu043fu0440u0435u0434u0435u043bu0435u043du0438u00a0 and the broadening of the range of u043eu043fu0440u0435u0434u0435u043bu00a0u0435u043cu044bu0445 boron concentrations.method u0437u0430u043au043bu044eu0447u0430u0435u0442u0441u00a0 in processing an analyzed sample solutions in u0440u0430u0432u043du043eu0432u0435u0441u043du043eu0439 concentration sulphuric acid 0.01 to 0.4 m and fluoride u043du0430u0442u0440u0438u00a0 10 - 3 - 0.1 m, u043au0440u0430u0441u0438u0442u0435u043bu00a0 n, n1 - u0434u0438u043cu0435u0442u0438 u043bu0438u043du0434u043eu0434u0438u043au0430u0440u0431u043eu0446u0438u0430u043du0438u043du0430 with u0440u0430u0432u043du043eu0432u0435u0441u043du043eu0439 concentration (1.0 - 2.4). 10 - 4 m, in the extraction of u043eu0431u0440u0430u0437u0443u044eu0449u0435u0433u043eu0441u00a0 ion u0430u0441u0441u043eu0446u0438u0430u0442u0430 u0442u043eu043bu0443u043eu043bu043eu043c and measuring the optical density at 646 nm. u043cu043eu043bu00a0u0440u043du044bu0439 u043fu043eu0433u0430u0448u0435u043du0438u00a0 ratio is 2.0. 105.the range of u043eu043fu0440u0435u0434u0435u043bu00a0u0435u043cu044bu0445 content of boron u0441u043eu0441u0442u0430u0432u043bu00a0u0435u0442 0.005 - 1.5 mg / ml). 2, table 2).