METHOD OF PHOTOMETRIC DETERMINATION OF LEAD IN BRONZE

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to analytical chemistry, namely, the photometric means u043eu043fu0440u0435u0434u0435u043bu0435u043du0438u00a0 lead in the bronze. the purpose of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 - improved accuracy u043eu043fu0440u0435u0434u0435u043bu0435u043du0438u00a0 lead bronze to 0.01%. this u0440u0430u0441u0442u0432u043eu0440u00a0u044eu0442 u0434u043bu00a0 u0430u043du0430u043bu0438u0437u0438u0440u0443u0435u043cu0443u044e sample in inorganic acid, lead u0432u044bu0434u0435u043bu00a0u044eu0442 from solution by u0438u043eu043du043eu043eu0431u043cu0435u043du043du043eu0439 resin, for example, mark de - 10 w or u0430u043d2u0444u043d.u0432u044bu043cu044bu0432u0430u044eu0442 of resin in water, aqueous solution of u043fu043eu0434u0449u0435u043bu0430u0447u0438u0432u0430u044eu0442 to ph 10 and u0434u043eu0431u0430u0432u043bu00a0u044eu0442 mv to - 0025% solution u0441u0443u043bu044cu0444u0430u0440u0441u0430u0437u0435u043du0430 in 0.05u043c solution drills, and optical density of received a solution x u0438u0437u043cu0435u0440u00a0u044eu0442 with a wavelength of 500 nm