The eyclie voltammetry (CV) and the square-wave technique were used for the investigations of thallium (I) underpotential deposition (UPD) on the silver electrode. A solution of 10 mmol/L HClO4+10 mmol/L NaCl was selected as the supporting electrolyte. The calibration plots for Tl(I) concentration in the range of 2

The anodic stripping behavior of the Ag seed layers on a p-silicon (100) wafer was studied by cyclic voltammetry (CV). The seed layers were prepared by immersing the silicon wafer in a solution of 0.005 M AgNO3+0.06 M HF at room temperature. Then the layer adhered wafers were used as the work electrodes. The oxidation energy of the Ag monolayer based on the Si-Ag combination was observed and the oxidation energy of the Ag multilayer based on the Ag-Ag combination was also found.

在氯化亚锡敏化、氯化钯活化的条件下，通过化学镀方法，成功地在纳米金刚石粉体表面制备了超薄铜膜。用X 射线粉末衍射（XRD）和傅立叶红外吸收光谱（FTIR）表征了该Cu-金刚石纳米复合材料。此种复合材料在无水乙醇中超声分散5min后的溶胶可稳定存放半年之久而不见沉降。

A chemically modified carbon paste electrode was prepared by incorporating appropriate amounts of sodium humate(NaA). Palladium(II) was selectively accumulated in a solution of Britton-Robinson(B-R) buffer (pH 2.8) onto the electrode surface in open circuit mode. The subsequent electrochemical measurement was carried out by cyclic voltammetry (CV) and linear sweep anodic stripping voltammetry (LSASV) in a supporting electrolyte of 1.0 M HCl. The obtained oxidation currents (Ipa1 and Lpa2) were proportional to the Pd(II) concentration in the range of 4.7

The underpotential deposition (UPD) of antimony(Ⅲ) on gold electrode was studied by using cyclic voltammetry (CV). Based on the excellent electrochemical properties of the Au/Sb UPD system, a new method for determination of antimony was developed. In this case, a more sensitive lectroanalytical technique, 1.5th order differentialanodic stripping voltammetry (1.5th ODASV), was used. A solution of 0.1 mol/L HCl was selected as the supporting electrolyte. Factors affecting the Sb(Ⅲ) UPD and stripping steps were investigated and an optimized analytical procedure was proposed. The calibration plots for Sb(Ⅲ) concentration in the range 1.25×10-8-3.38×10-7 mol/L were obtained. A detection limit of 2.1×10-9 mol/L was found for a 120 second electrochemical deposition at 0.100 V while the solution was stirred magnetically at a speed of 300 rpm. For 9 successive determinations of 2.5×10-8 mol/L Sb(Ⅲ), relative standard deviations, RSD, of 0.55% was obtained. The developed method was applied to antimony determination in ore samples.