Chem. J. Chinese Universities ›› 1992, Vol. 13 ›› Issue (3): 320.

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Normal Dual Pulse Superimposed Four Potential Step Differential Voltammetry

FANG Yu-zhi, WANG Ren-er, TONG Wei, HE Pin-gang   

  1. Department of Chemistry, East China Normal University, Shanghai, 200062
  • Received:1991-10-15 Online:1992-03-24 Published:1992-03-24

Abstract: A new type normal dual pulse superimposed four potential step differential voltamme-try is proposed and realized on a microcomputer controlled voltammetric analyzer.The combination of differentiation and addition of samlping currents on four potential steps which are antisymmetric with each other respectively tends to offset the charging currents caused by forward and reverse potential steps.This new pulse technique has the merits of normal pulse voltammetry (NPV) and differential pulse voltammetry (DPV).At the same time, its rapid scan rate and short delaying time prior to current sampling make it more sensitive than DPVand suitable for the study of fast kinetics.

Key words: Voltammetry, Potential step techniques, Pulse

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