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Voltammetric oxidation and determination of atenolol using a carbon paste electrode / Roopa H. Patil in Industrial & engineering chemistry research, Vol. 48 N° 23 (Décembre 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 23 (Décembre 2009) . - pp. 10206–10210 Titre : Voltammetric oxidation and determination of atenolol using a carbon paste electrode Type de document : texte imprimé Auteurs : Roopa H. Patil, Auteur ; Rajesh N. Hegde, Auteur ; S. T. Nandibewoor, Auteur Année de publication : 2010 Article en page(s) : pp. 10206–10210 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Voltammetric--Oxidation--Determination--Atenolol--Using--Carbon--Paste--Electrode Résumé : The electrochemical oxidation of atenolol, an antihypertensive drug, was studied in a phosphate medium at a carbon paste electrode. Cyclic voltammetric results showed one well-defined oxidation peak in the potential range from 0.2 to 1.2 V under different pH conditions, but the best results were obtained at pH 10.4. The oxidation was irreversible and exhibited diffusion-controlled behavior. The response was evaluated with respect to pH and scan rate. The number of electrons transferred in the oxidation process was calculated, and the probable oxidation mechanism was proposed. The proposed differential pulse voltammetric method was successfully applied to atenolol determination in pharmaceutical samples. The analytical performance of this method has been evaluated for detection of analyte in urine as a real sample. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901163k [article] Voltammetric oxidation and determination of atenolol using a carbon paste electrode [texte imprimé] / Roopa H. Patil, Auteur ; Rajesh N. Hegde, Auteur ; S. T. Nandibewoor, Auteur . - 2010 . - pp. 10206–10210. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 23 (Décembre 2009) . - pp. 10206–10210 Mots-clés : Voltammetric--Oxidation--Determination--Atenolol--Using--Carbon--Paste--Electrode Résumé : The electrochemical oxidation of atenolol, an antihypertensive drug, was studied in a phosphate medium at a carbon paste electrode. Cyclic voltammetric results showed one well-defined oxidation peak in the potential range from 0.2 to 1.2 V under different pH conditions, but the best results were obtained at pH 10.4. The oxidation was irreversible and exhibited diffusion-controlled behavior. The response was evaluated with respect to pH and scan rate. The number of electrons transferred in the oxidation process was calculated, and the probable oxidation mechanism was proposed. The proposed differential pulse voltammetric method was successfully applied to atenolol determination in pharmaceutical samples. The analytical performance of this method has been evaluated for detection of analyte in urine as a real sample. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901163k