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Information × Registration Number 0210U006393, 0108U008756 , R & D reports Title Working out and metrological certification of a technique of definition of a mass part of gold in micro part in weight 50-10 milligramme of yellow and red gold a fire assay method (cupellation). popup.stage_title Head Jushyn Olexandr, Registration Date 09-08-2010 Organization M.P. Semenenko Institute of Geochemistry, mineralogy and Ore Formation popup.description2 Possibility of gold alloys micro part using with mass 0,050-0,010 was researched for definition of precious metals tenor with cupellation. The main factors that controlling the quality of final result were defined: modern weighting tools inventory, that ensure fidelity of alloy and gold card weighting on the level of 0,00001-0,000001 g; meeting the requirements to technologies of weighting quantity for analysis selection and its preparation for analysis; observation of certain cupellation modes and further heat treat golden-silver beads, that provide optimal parameters of crystal-chemical alloy structure transformations processes with localisation of high-grade phases in beads' mass. Main parameters of new methodology of golden alloys' analysis with cupellation usage were experimentally define and possibility of attestation of mass' gold share definition method with usage of micro part 0,030 g. and more was validate. Product Description popup.authors Власенко Л.М. Гнелицька З.Т. Гуркова Г.А Дмитренко Л.Г. Резван К.А. Юшин Олександр Олексанрович popup.nrat_date 2020-04-02 Close