Understanding the behavior of caffeine on a boron-doped diamond surface: voltammetric, DFT, QTAIM and ELF studies

2017 ◽  
Vol 41 (15) ◽  
pp. 7766-7774 ◽  
Author(s):  
Ámison Rick Lopes da Silva ◽  
Danyelle Medeiros de Araújo ◽  
Evanimek Bernardo Sabino da Silva ◽  
Davi Serradella Vieira ◽  
Norberto de Kássio Vieira Monteiro ◽  
...  
Keyword(s):  
Differential Pulse Voltammetry ◽  
Differential Pulse ◽  
Diamond Surface ◽  
Boron Doped Diamond ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Boron Doped Diamond Electrode ◽  
Pulse Voltammetry

A cyclic and differential pulse voltammetry analysis by using a boron doped diamond electrode to understand the behavior of caffeine on its surface was carried out.

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).

Simultaneous voltammetric determination of aspartame and acesulfame-K in food products using an anodically pretreated boron-doped diamond electrode

2015 ◽  
Vol 7 (5) ◽  
pp. 2135-2140 ◽  
Author(s):  
Patrícia B. Deroco ◽  
Roberta A. Medeiros ◽  
Romeu C. Rocha-Filho ◽  
Orlando Fatibello-Filho
Keyword(s):  
Differential Pulse Voltammetry ◽  
Food Products ◽  
Differential Pulse ◽  
Boron Doped Diamond ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Boron Doped Diamond Electrode ◽  
Pulse Voltammetry ◽  
Simultaneous Voltammetric Determination

The sweeteners aspartame and acesulfame-K were successfully determined in food products by coupling differential pulse voltammetry with an anodically pretreated boron-doped diamond electrode.

scholarly journals Gemcitabine Direct Electrochemical Detection from Pharmaceutical Formulations Using a Boron-Doped Diamond Electrode

2021 ◽  
Vol 14 (9) ◽  
pp. 912
Author(s):  
Iulia Rus ◽  
Alexandra Pusta ◽  
Mihaela Tertiș ◽  
Cristina Barbălată ◽  
Ioan Tomuță ◽  
...  
Keyword(s):  
Differential Pulse Voltammetry ◽  
Pharmaceutical Formulations ◽  
Differential Pulse ◽  
Boron Doped Diamond ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Boron Doped Diamond Electrode ◽  
Amperometric Method ◽  
Pulse Voltammetry ◽  
Phosphate Buffered Saline

The development of fast and easy-to-use methods for gemcitabine detection is of great interest for pharmaceutical formulation control in both research laboratories and hospitals. In this study, we report a simple, fast and direct electrochemical method for gemcitabine detection using a boron-doped diamond electrode. The electrochemical oxidation of gemcitabine on a boron-doped diamond electrode was found to be irreversible in differential pulse voltammetry, and scan rate influence studies demonstrated that the process is diffusion-controlled. The influence of the pH and supporting electrolytes were also tested, and the optimized differential pulse voltammetry method was linear in the range of 2.5–50 μg/mL, with a detection limit of 0.85 μg/mL in phosphate-buffered saline (pH 7.4; 0.1 M). An amperometric method was also optimized for gemcitabine detection. The linear range of the method was 0.5–65 μg/mL in phosphate-buffered saline of pH 7.4 as well as pH 5.5, the limit of detection being 0.15 μg/mL. The optimized differential pulse voltammetry and amperometric detection strategies were successfully applied to pharmaceutical formulations, and the results were compared to those obtained by high-performance liquid chromatography and UV-Vis spectrophotometry with good correlations.

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