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Simultaneous Determination of Paracetamol, Ascorbic Acid and Codeine by Differential Pulse Voltammetry on the Aluminum Electrode Modified by Thin Layer of Palladium
Author(s) -
PournaghiAzar M. H.,
Saadatirad A.
Publication year - 2010
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.200900542
Subject(s) - ascorbic acid , differential pulse voltammetry , detection limit , palladium , electrode , chemistry , voltammetry , linear range , materials science , analytical chemistry (journal) , inorganic chemistry , cyclic voltammetry , chromatography , electrochemistry , organic chemistry , catalysis , food science
In the present work an aluminum electrode was modified with thin layer of metallic palladium. The ability of the electrode for electrooxidation and subsequent differential pulse voltammetric determination of paracetamol (PCT), ascorbic acid (AA) and codeine (CO) was evaluated. The results obtained indicated that a linear range from 0.1–3 mM and a detection limit of 5 μM for both three compounds is accessible. The peak separation of AA, PCT and CO is more than 300 mV large enough, allowed simultaneous determination of these compounds. The proposed method was applied for determination of AA, PCT and CO in some real samples.