Continuous wavelet transform and its application to resolving and quantifying the overlapped voltammetric peaks

In order to resolve and quantify the overlapped peaks of voltammetry that c an be described by sech(2)-function, continuous wavelet transform (CWT) is employed. Through CWT by using Marr wavelet, qualitative and quantitative a nalysis for the mixed solution of Cd(II) and In(III) can be performed from unresolved square wave voltammogram (SWV) and relevant theoretical basis is provided. A new method to construct the baseline for quantitative determin ation is also proposed. The results of analysis indicate that the overlappe d voltammogram can be resolved and quantified effectively, conveniently and satisfactorily via CWT. (C) 2001 Elsevier Science B.V All rights reserved.