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Electrochemical Behavior of N ‐Phenylcinnamohydroxamic Acid Incorporated into Carbon Paste Electrode and Adsorbed Metal Ions
Author(s) -
Alemu Hailemichael,
Chandravanshi Bhagwan Singh
Publication year - 1998
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/(sici)1521-4109(199802)10:2<116::aid-elan116>3.0.co;2-b
Subject(s) - cyclic voltammetry , vanadium , redox , aqueous solution , inorganic chemistry , glassy carbon , electrochemistry , voltammetry , chemistry , differential pulse voltammetry , acetonitrile , adsorption , electrode , materials science , chromatography , organic chemistry
The voltammetric properties of N ‐phenylcinnamohydroxamic acid (PCHA) at a glassy carbon electrode in acetonitrile solutions and PCHA incorporated into carbon paste electrodes (CPE) in aqueous solutions have been examined by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The redox behavior of PCHA in acetonitrile showed electron transfer process followed by chemical reaction. The voltammetric behavior of PCHA modified CPE in aqueous solution (0.25 M sodium acetate) was found to be a function of pH. The voltammetric behavior of PCHA incorporated CPE was also studied in the presence of vanadium( V ), iron( III ), and uranium( VI ). A linear relationship was observed between the DPV peak current of PCHA and the concentration of vanadium( V ) while the peak current of PCHA was found to be an exponential function of the concentrations of iron( III ) and uranium( VI ).