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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Simultaneous Differential Pulse Voltammetric Determination of Ascorbic Acid and Caffeine in Pharmaceutical Formulations Using a Boron-Doped Diamond Electrode

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Author(s):
Lourencao, Bruna Claudia [1] ; Medeiros, Roberta Antigo [2] ; Rocha-Filho, Romeu C. [2] ; Fatibello-Filho, Orlando [1, 2]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
[2] Univ Sao Paulo, Dept Quim, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Electroanalysis; v. 22, n. 15, p. 1717-1723, AUG 2010.
Web of Science Citations: 44
Abstract

A cathodically pretreated boron-doped diamond electrode was used for the simultaneous anodic determination of ascorbic acid (AA) and caffeine (CAF) by differential pulse voltammetry Linear calibration curves (r = 0 999) were obtained from 1 9 x 10(-5) to 2 I x 10(-4) mol L(-1) for AA and from 9 7 x 10(-6) to 1 1 x 10-4 mol L(-1) for CAF. with detection limits of 19 wool L(-1) and 7 0 mu nol L(-1). respectively This method was successfully applied for the determination of AA and CAF in pharmaceutical formulations. with results equal to those obtained using a HPLC reference method (AU)

FAPESP's process: 07/05894-9 - Simultaneous Voltammetric Determination of Paracetamol and Caffeine and Ascorbic Acid and Caffeine in Pharmaceutical Formulations Using a Boron Doped Diamond Electrode
Grantee:Bruna Cláudia Lourenção
Support Opportunities: Scholarships in Brazil - Master