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Corresponding Author

Guohua Chen

Abstract

The graphite AS composite electrodes, which show high electric conductivity, high mechanical strength and operationl stability, were prepared by filling and extruding the AS copolymer with graphite powder. It exhibited a substantial hydrogen overvoltage and small residual current in different electrolytes, as compared with glassy carbon electrode. The electrode was applied to the determination of traces of Pb 2+ in mineral water, Ag + in waste water and In 3+ , Cu 2+ , Pb 2+ , Cd 2+ in zinc ore, and showed high stability, reproducibility and selectivity. Owing to the existence of abundant polar functioal groups on the electrode, the electrode shows the good ability to be further modified with methylene blue by a dip coating procedure.

Keywords

Polymer, Graphite, Electrode, Cyclic Voltammogram

Publication Date

1997-05-28

Online Available Date

1997-05-28

Revised Date

1997-05-28

Received Date

1997-05-28

References

1HoyerB,FlorenceTM,BatleyGE.Applicationofpolymercoatedglassycarbonelectrodesinanodicstrippingvoltammetry.Anal.Chem.,1987,59(13):16082金利通,同威,方禹之.吸附型化学修饰电极在分析化学中的应用.分析试验室,1987,6(8):453徐金瑞,刘斌.聚乙烯醇修饰电极的研制及应用.分析化学,1992,20(5):5274JinruiXu,BinLiu.Preconcentrationanddeterminationofleadionatachitosan-modifiedglassycarbonelectrode.Analyst,1994,119:15995金文,董绍俊.磷钼酸掺杂的聚吡咯薄膜电极的表征.物理化学学报,1994,10(2):1836XuJinrui,ZhuangXiurun.Poly-salicylicacidmodifiedglassy-carbonelectrodeanditsapplication.Talan-ta,1991,38(10):1191

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