Simultaneous Determination of Caffeine and Acetylsalicylic Acid in Pharmaceutical Formulations Using a Boron-Doped Diamond Film Electrode by Differential Pulse Voltammetry

2012 ◽  
Vol 24 (5) ◽  
pp. 1141-1146 ◽  
Author(s):  
Eric Oliveira Faria ◽  
Antônio Carlos Viera Lopes Junior ◽  
Dênio Emanuel Pires Souto ◽  
Fernando Roberto Figueiredo Leite ◽  
Flávio Santos Damos ◽  
...  
Keyword(s):  
Acetylsalicylic Acid ◽  
Differential Pulse Voltammetry ◽  
Diamond Film ◽  
Pharmaceutical Formulations ◽  
Differential Pulse ◽  
Film Electrode ◽  
Boron Doped Diamond ◽  
Boron Doped ◽  
Pulse Voltammetry

Voltammetric determination of ciprofloxacin in urine samples and its interaction with dsDNA on a cathodically pretreated boron-doped diamond electrode

2015 ◽  
Vol 7 (8) ◽  
pp. 3411-3418 ◽  
Author(s):  
Gustavo Stoppa Garbellini ◽  
Romeu C. Rocha-Filho ◽  
Orlando Fatibello-Filho
Keyword(s):  
Differential Pulse Voltammetry ◽  
Square Wave Voltammetry ◽  
Differential Pulse ◽  
Boron Doped Diamond ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Wave Voltammetry ◽  
Boron Doped Diamond Electrode ◽  
Pulse Voltammetry

A cathodically pretreated boron-doped diamond electrode is successfully used to determine ciprofloxacin (CIP) by differential pulse voltammetry and to infer the type of binding of CIP to DNA by square-wave voltammetry.

scholarly journals Determination of methiocarb pesticide using differential pulse voltammetry with a boron-doped diamond electrode

2015 ◽  
Vol 7 (11) ◽  
pp. 4671-4677 ◽  
Author(s):  
J. Chýlková ◽  
M. Tomášková ◽  
I. Švancara ◽  
L. Janíková ◽  
R. Šelešovská
Keyword(s):  
Differential Pulse Voltammetry ◽  
Rapid Method ◽  
Differential Pulse ◽  
Voltammetric Determination ◽  
Boron Doped Diamond ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Boron Doped Diamond Electrode ◽  
Pulse Voltammetry

In this article, a simple and rapid method is described for voltammetric determination of methiocarb (MTC, a pesticide of the carbamate type).

scholarly journals Electrochemical and analytical performance of boron-doped diamond electrode for determination of ascorbic acid

2017 ◽  
Vol 10 (1) ◽  
pp. 21-28 ◽  
Author(s):  
Ivana Sálusová ◽  
Kristína Cinková ◽  
Barbora Brtková ◽  
Marian Vojs ◽  
Marián Marton ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Differential Pulse Voltammetry ◽  
Differential Pulse ◽  
Analytical Performance ◽  
Current Response ◽  
Boron Doped Diamond ◽  
Boron Doped ◽  
Relative Standard ◽  
Pulse Voltammetry

Abstract The electrochemical behavior and determination of ascorbic acid (AA) was investigated at a bare boron-doped diamond (BDD) electrode using cyclic and differential pulse voltammetry. The influence of pH of supporting electrolyte and scan rate on the current response of analyte was examined to select the suitable experimental conditions. It was found that AA provided one well-shaped irreversible and diffusioncontrolled oxidation peak at +0.87 V vs. Ag/AgCl in Britton-Robinson buffer pH 4.0. Applying differential pulse voltammetry, the peak current of AA was linearly proportional to its concentration from 5 × 10-6 to 2 × 10-4 mol L-1 (R2 = 0.999), with the limit of detection of 1.1 × 10-6 mol L-1 and the good repeatability (relative standard deviation of 2.3 %). The developed electroanalytical protocol was successfully applied to determine the content of AA in commercial pharmaceutical preparations, based on the standard additions method, with the obtained recovery of 122 %. The accomplished analytical performance indicates that BDD electrodes are promising electrochemical sensors for pharmaceutical analysis.

scholarly journals Voltammetric and amperometric determination of metoclopramide on boron-doped diamond film electrode

2012 ◽  
Vol 10 (4) ◽  
pp. 1310-1317 ◽  
Author(s):  
Hana Dejmkova ◽  
Candan Dag ◽  
Jiri Barek ◽  
Jiri Zima
Keyword(s):  
Diamond Film ◽  
Pharmaceutical Preparation ◽  
Amperometric Detection ◽  
Differential Pulse ◽  
Film Electrode ◽  
Boron Doped Diamond ◽  
Amperometric Determination ◽  
New Methods ◽  
Boron Doped

AbstractNew methods for the determination of metoclopramide, antiemetic and gastroprokinetic pharmaceutical, were developed, using differential pulse voltammetry (DPV) and flow injection analysis (FIA) with amperometric detection on a boron-doped diamond film electrode. Electrode pretreatment necessary to ensure the stable results was investigated and it was found, that while DPV requires frequent electrode cleaning, FIA with a sufficiently high flow rate can maintain a stable signal with no signs of electrode passivation. The calculated quantification limits of the DPV and FIA with amperometric detection were 0.13 μmol L−1 and 0.015 mmol L−1, respectively. The applicability of the new methods was verified by the determination of metoclopramide in a pharmaceutical preparation. FIA with amperometic detection proved to be sensitive, accurate and, due to the resistance of the electrode to the passivation, also simple to handle.

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