Análisis de metales traza por redisolución anódica con monitoreo potenciometrico redox consistema de mínima instrumentación.

A minimal instrumentation and low-cost equipment for anodic potentiometric stripping analysis was built. The cations Cd(II), Pb(II), Cu(II), Zn(II) and Bi(III) were identified in concentrations around 10-5 mol/L by calibration plots, such relationships were used for the trace analysis. The effects of deposition time of metals, and their reaction with a fixed concentration of Hg(II) in dissolution over the chronopotentiometric transition time were investigated. [ABSTRACT FROM AUTHOR]