Anodic stripping determination of Pt(IV) based on the anodic oxidation of Hg and Cd from electrochemically deposited Hg–Pt and Hg–Cd alloy phases

Abstract

An anodic stripping voltammetric determination of Pt(IV) is described which is based on depositing intermetallic mercury-platinum and cadmium-platinum alloy phase on the surface graphite electrode, and recording the oxidation peak of mercury and cadmium from these phases with the help of linear scan voltammetry. Three alloy phases are formed in the case of mercury-platinum, whereas only one phase appears in the case of cadmium-platinum.

Measuring the Changes in Copper Nanopowder Conductivity during Heating as a Method for Diagnosing its Thermal Stability

“…It must be noted that the applicability of this method to the diagnostics of other nanopowders (including modified ones [11][12][13][14][15][16][17]) requires additional verification. Nevertheless, if combined with such methods as differential thermal analysis, electrochemical research methods [18][19][20][21][22][23][24][25], X-ray structural analysis [26][27][28][29] and X-ray phase [30] analysis, the method suggested in the article can be used for researching the physical and chemical processes taking place in nanopowders in the course of heating and oxidation [31].…”

Monitoring the Palladium Contents in the Tailings Using Stripping Voltammetry

“…The simplicity and low cost of implementation and the expressiveness of the analysis make it popular. The determination of precious metals by this method was possible to conduct and demonstrate in our research [11]. The purpose of work is to develop a methodology for the palladium determination in the tailings using stripping voltammetry.…”

“…Stripping voltammetry with a concentration has proved itself from the best side today. This analysis method allows determining the trace elements with high sensitivity and minimum errors [7][8][9][10][11]. The simplicity and low cost of implementation and the expressiveness of the analysis make it popular.…”

Comparative Characteristics of Voltammetric Methods Determination of Platinum in Mineral Raw Materials

“…When platinum is determined by means of stripping voltammetric methods [1,2], normally a coprecipitation with other metals, e.g., copper, lead, mercury, etc. happens [3,4,5]. It is assumed that in the presence of co-deposition metal platinum on the electrode surface not only forms alloys with mutual solubility, but the intermetallic compound with these metals [6,7].…”