Anodic Stripping Determination of Pt (IV) Based on the Anodic Oxidation of Cu from the Intermetallic Phase of Cu[3]Pt

It is shown that platinum can be determined by anodic stripping voltammetry at the peak of selective electrooxidation of copper from intermetallic phase with platinum of Cu[3]Pt composition. The composition of intermetallic copper-platinum phase formed on the electrode during pre-electrolysis was calculated on the amount of potential displacement (delta Е) of copper electrooxidation

Assessment of Phase Composition of Electrolytic Deposits by Stripping Voltammetry

This paper describes the method of assessing the composition of the intermetallic compounds in nanoscale electrolytic deposits. The formula was developed for calculating the deflection potential in the case of selective electrooxidation electronegative component of the alloy composition. The processes of electro binary electrolytic precipitation in mercury-rhodium chloride electrolyte by anodic stripping voltammetry were studied. It was established that an electrolytic precipitate contains rhodium, mercury and rhodium IC with mercury composition Hg[5]Rh

Determination of Gold by Stripping Voltammetry in Platinum Gold Ore Mineral Raw Materials on Grafite Electrode Modified by Bismuth

The paper considers the possibility of determining the gold (III) by stripping voltammetry on graphite electrode modified by bismuth. It is shown the modification of the graphite electrode by bismuth increases the sensitivity of detection of gold in 2 times. The comparison of the results of gold determination by stripping voltammetry and by atomic absorption is presented. The advantages of stripping voltammetry on a graphite electrode modified with bismuth for gold determination are given

Determining rhenium in crude ore by the method of X-ray fluorescence analysis

Optimal conditions of sorption concentration of perrhenate-ions with activated carbon have been considered. The possibility of rhenium determination with accompanying element is show

Determination of Au, Pb, Ni and Co in Mineral Raw Materials by Atomic Absorption Spectroscopy with Graphite Furnace

A method for quantitative determination of gold, lead, nickel, cobalt in a range of concentrations from mg/g to ng/g was proposed. Method consists of annealing, treatment with acids followed by extraction. Determination of nickel, cobalt and lead was carried out after the decomposition of the sample, without discharge of the sample matrix. Method was tested by certified reference material and various rock samples. Method can be applied for determination of corresponding metals in ores, rocks and waste mining industry

Determination of Platinum Metals in Carbonaceous Mineral Raw Materials by Stripping Voltammetry

The paper considers the possibility of determining platinum metals in mineral raw materials by stripping voltammetry on a graphite electrode modified by metals. Stripping voltammetry method is characterized by low determination limit, wide intervals of determined content and high sensitivity. As a result of the research the conditions for the determination of gold, platinum and palladium by stripping voltammetry have been selected. The comparison of the results of gold, palladium and platinum determination by stripping voltammetry and atomic absorption is presented

THE LAWS OF THE ELECTRIC CONCENTRATION AND ELECTRIC OXIDATION OF THE PLATINUM METALS SETTLEMENTS AND ITS DETERMINATION BY THE METHOD OF THE VOLT-AMPERMETRY IN MINERAL RAW MATERIAL

The purpose of the work: to reveal the main laws of restoration of the platinum metals complexes on the graphite electrode and electric oxidation of the fresh-settled sediments, and use of the obtained data for the development of the methods of determination of the platinum metals by the method of the inversion voltampermetry. The mechanism has been offered, and the kinetic parameters of the processes of the electric oxidation of the fresh-settled sediments of platinum, palladium and rhodium on the surface of the graphite electrode have been designed; the mechanism of the electric oxidation of the fresh-settled sediments of the ruthenium on the surface of the different electrodes has been offered. The influence of the ultraviolet radiation on the kinetics of the sorbtion concentration of the platinum metals, has been established. The methods of the inversion voltampermetry of determination of the platinum metals and gold in the products of processing of the sulphide copper-nickel ores, carbon slates, sandstones, carbons; the method of determination of platinum in the biologically active media have been developed. The results have been introduced.Available from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio