Determination of Pb2+ ions by square-wave anodic stripping voltammetry using silver nanoparticles grown on indium tin oxide substrate

Rong Bin Huang; Yi Fan Zheng

Determination of Pb²⁺ ions by square-wave anodic stripping voltammetry using silver nanoparticles grown on indium tin oxide substrate

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Author(s): Rong Bin Huang ¹ and Yi Fan Zheng ²
- Affiliations: 1: College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China;
  2: Research Center of Analysis and Measurement, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
Source: Volume 9, Issue 11, November 2014, p. 766 – 769
DOI: 10.1049/mnl.2014.0224 , Online ISSN 1750-0443

Received 03/05/2014, Accepted 04/09/2014, Revised 05/07/2014, Published 13/11/2014

Silver (Ag) nanoparticles with a pure face-centred cubic phase were grown on indium tin oxide (ITO) substrate via the electrodeposition method. The products were characterised by scanning electron microscopy, energy-dispersive X-ray analysis and X-ray diffraction. Ag nanoparticles deposited on the ITO substrate were first used as an electrode for the electrochemical analysis of lead ions. A linear response was observed for Pb²⁺ in the range of 0.1–8 µM. The linear regression equation was I = 0.129 + 0.368C (unit of C is μM) and the correlation coefficient was 0.9993. The detection limit was 70 nM Pb²⁺ (S/N = 3). The results open new possibilities for the fabrication of novel electrodes for the construction of simple, low-cost and reliable electrochemical sensors for the quantification of trace levels of Pb²⁺.

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Determination of Pb²⁺ ions by square-wave anodic stripping voltammetry using silver nanoparticles grown on indium tin oxide substrate

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