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Determination of Trichloroacetic Acid (TCAA) Using CdO Nanoparticles Modified Carbon Paste Electrode
Author(s) -
Najafi Mostafa,
Darabi Salman,
Tadjarodi Azadeh,
Imani Mina
Publication year - 2013
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.201200462
Subject(s) - chronoamperometry , electrocatalyst , chemistry , detection limit , aqueous solution , carbon paste electrode , cyclic voltammetry , electrode , inorganic chemistry , trichloroacetic acid , electrochemistry , chromatography , organic chemistry
Abstract In this paper, the electrochemical behavior of a carbon paste electrode modified with CdO nanoparticles as a potential electrocatalyst for the reduction of trichloroacetic acid (TCAA) was investigated using cyclic voltammetry and double‐potential step chronoamperometry. The modified electrode showed a great enhancement in cathodic peak current with respect to reduction of TCAA in acidic aqueous solution. Using this increment, a quantitative method was developed for the determination of TCAA in aqueous solution. The detection limit and linear dynamic range of TCAA are 2.3×10 −6 M and 2.3×10 −4 –3×10 −6 M, respectively.