Journal of Analytical Chemistry

, Volume 61, Issue 3, pp 266–272 | Cite as

Electroanalytical characteristics of a subnanometer thin-film mercury-carbon electrode in anodic stripping voltammetry with a linear high-rate potential sweep: Determination of Tl(I)

  • G. G. Munteanu
  • S. G. Munteanu


With the example of the determination of Tl(I) with a mercury-carbon electrode generated in situ on a carbon fiber substrate, it is shown that an electrode with a monolayer thickness of the mercury film reduces the quantification limit of the metal as compared to the electrode with a thick mercury film (down to 10−10 M). Studying the electrooxidation kinetics of Tl (Zn, Cd, Pb) showed that the rate constant and the transport coefficient at this electrode are independent of the electrode polarization rate. It is found that the rate constant of the electrode process and the slope of the calibration plot linearly depend on the atomic radius of the metal under study.


Analytical Chemistry Mercury Carbon Fiber Atomic Radius Calibration Plot 
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Copyright information

© Pleiades Publishing, Inc. 2006

Authors and Affiliations

  • G. G. Munteanu
    • 1
  • S. G. Munteanu
    • 2
  1. 1.Institute of ChemistryAcademy of Sciences of MoldovaChisinauMoldova
  2. 2.Faculty of ChemistryUniversity of BucharestBucharestRomania

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