Fast-Scan Anodic Stripping Voltammetry for Detection of Pb(II) at Picomolar Level

Fan Yang Fan Yang , Peng Liu Peng Liu , Tingting Hao Tingting Hao , Yangbo Wu Yangbo Wu , Shaohua Ma Shaohua Ma , Yufang Hu Yufang Hu , Sui Wang Sui Wang , Zhiyong Guo Zhiyong Guo
Российский электрохимический журнал
Abstract / Full Text

Fast-scan anodic stripping voltammetry (FSASV) was applied to sensitively detect Pb2+ on a mercury film electrode (MFE). The method was involved with a controlled preconcentration by accumulation of Pb2+ on the MFE followed by FSASV measurement. At the scan rate of 500 V/s, a linear relationship between the anodic stripping peak current and the logarithm of Pb2+ concentration in the solution was observed in the range from 0.1 µmol/L to 0.1 pmol/L with a detection limit of 0.1 pmol/L. The proposed method was successfully applied for the determination of Pb2+ in spiked water samples with satisfying recoveries in the range of 98.6 to 104.3%, and the corresponding relative standard deviation ranged from 3.7 to 5.5%. Therefore, FSASV is a sensitive, fast, cost-effective and simple method for the detection of Pb2+ at picomolar level and would be very promising in heavy metal determination.

Author information
  • School of Materials Science and Chemical Engineering, The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo University, Ningbo, 315211, P.R. China

    Fan Yang, Tingting Hao, Yufang Hu, Sui Wang & Zhiyong Guo

  • Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, P.R. China

    Peng Liu & Yangbo Wu

  • School of Medical Technology, Ningbo College of Health Sciences, Ningbo, 315100, P.R. China

    Shaohua Ma

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