The metals have different electrochemical behaviors in different
electrolytes. The effects of some electrolytes, such as NaCl, NaNO3,
HClO4, acetate buffer solution (NaAc–HAc) and phosphate buffer
solution (Na2HPO4–KH2PO4) on stripping peak currents of Pb2+ and
Cd2+ were studied. The results show that Pb2+ and Cd2+ have the
best electrochemical responses in 0.1MHClO4.When the measurementswere
performed in this electrolyte, the largest stripping peak
current, the lowest background current and the best shape of peak
were obtained.