Premium
Lead Film Electrode Prepared with the Use of a Reversibly Deposited Mediator Metal in Adsorptive Stripping Voltammetry of Nickel
Author(s) -
TyszczukRotko Katarzyna,
Metelka Radovan,
Vytřas Karel,
Barczak Mariusz
Publication year - 2014
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201400263
Subject(s) - adsorptive stripping voltammetry , nickel , stripping (fiber) , electrode , materials science , detection limit , metal , plating (geology) , certified reference materials , anodic stripping voltammetry , voltammetry , analytical chemistry (journal) , inorganic chemistry , chemistry , metallurgy , electrochemistry , chromatography , composite material , geology , geophysics
The paper presents the first report on application of a “hybrid” lead film electrode for the adsorptive stripping voltammetric determination of Ni(II) in the presence of nioxime as a complexing agent. The strategy to create a “hybrid” electrode is based on the combination of ex situ and in situ plating methods and the use of a reversibly deposited mediator metal (Zn) for the lead film formation. The surface morphology of a new sensor was characterized by atomic force microscopy. The detection limit for Ni(II) obtained at 120 s of accumulation time was 3.9×10 −11 mol L −1 . The proposed method was validated for the determination of nickel in water certified reference materials with good results.