Differential pulse polarographic determination of thiol flotation collectors and sulphide in waters.
Thiol collectors and sulphide can be determined together by differential pulse polarography. Ethyl xanthate, diethyl dithiophosphate, and diphenyl dithiophosphate have been determined in concentrations from 10 muM to 2 mM, and sulphide from 1 muM to 0.5 mM. The method is reliable and rapid; however, the exact behaviour of the thiol collectors must be known since the pattern of current peaks changes as the concentration increases. This method has been used in the study of sulphide mineral flotation and could be utilized at full-scale flotation plants.
Leppinen
J
J
Department of Chemistry, Helsinki University of Technology, SF-02150 Espoo, Finland.
Vahtila
S
S