Analytical and Bioanalytical Chemistry

, Volume 381, Issue 4, pp 979–985

A comparison of different types of gold–carbon composite electrode for detection of arsenic(III)


  • Andrew O. Simm
    • Physical and Theoretical Chemistry LaboratoryOxford University
  • Craig E. Banks
    • Physical and Theoretical Chemistry LaboratoryOxford University
  • Shelley J. Wilkins
    • Department of MaterialsOxford University
  • Nikos G. Karousos
    • Chemistry DepartmentUniversity of Surrey
  • James Davis
    • Chemistry DepartmentUniversity of Surrey
    • Physical and Theoretical Chemistry LaboratoryOxford University
Original Paper

DOI: 10.1007/s00216-004-2960-z

Cite this article as:
Simm, A.O., Banks, C.E., Wilkins, S.J. et al. Anal Bioanal Chem (2005) 381: 979. doi:10.1007/s00216-004-2960-z


A study has been conducted using abrasively modified basal and edge-plane graphite, carbon-paste, and carbon–epoxy electrodes to create gold–carbon composite electrodes. Using either nano or micro-sized gold particles their suitability for use in detecting arsenic(III) is assessed. It was found that gold arrays prepared from micron-sized particles gave the best performance for arsenic detection. In particular micron arrays produced in carbon-paste electrodes with an easily renewable surface work well for detection of arsenic, producing a detection limit of 5(±2)×10−9 mol L−1, with a high sensitivity of 10(±0.1) A mol−1 L.


Arsenic(III)Carbon-paste electrodesAnodic stripping voltammetryGold microarraysGold nanoarrays

Copyright information

© Springer-Verlag 2004