Voltammetric behavior of I2/2I− redox system on boron-doped diamond electrode in various media and its utilization for the indirect detection of tin(II)

The electrochemical behavior of the asthma drug doxofylline was studied at a boron-doped diamond electrode in BR buffer (pH 3.8) by square-wave voltammetry. Cyclic voltammetry revealed the oxidation of doxofylline as an irreversible diffusion-controlled process. The oxidation mechanism was proposed and the drug was studied in the presence of solubilized systems like Tween-20 (T-20), sodium dodecyl sulfate (SDS), Triton X-100 (TTN), dioxane (DO), dimethylformamide (DMF), diethyl ether (DEE), benzene and methanol (MeOH). Comparison of the current responses in the solution system explained the sensitivity of the boron-doped diamond electrode (BDDE) with a three-fold increase in the current value compared to that of a glassy carbon electrode (GCE) at a fixed concentration of doxofylline. Peak current values varied linearly with increasing concentration and the LOD and LOQ were found to be 3.48 and 10.56 µg/ml, respectively. This method was employed to investigate doxofylline in the pharmaceutical formulation.

Download Full-text

Voltammetric behavior of benzo[a]pyrene at boron-doped diamond electrode: A study of its determination by adsorptive transfer stripping voltammetry based on the enhancement effect of anionic surfactant, sodium dodecylsulfate

Talanta ◽

10.1016/j.talanta.2011.04.005 ◽

2011 ◽

Vol 85 (1) ◽

pp. 441-448 ◽

Cited By ~ 34

Author(s):

Yavuz Yardım ◽

Abdulkadir Levent ◽

Ertuğrul Keskin ◽

Zühre Şentürk

Keyword(s):

Anionic Surfactant ◽

Sodium Dodecylsulfate ◽

Stripping Voltammetry ◽

Enhancement Effect ◽

Boron Doped Diamond ◽

Diamond Electrode ◽

Boron Doped ◽

Boron Doped Diamond Electrode ◽

Voltammetric Behavior

Download Full-text

In situ ATR-IR study of Fe(CN)63−/Fe(CN)64− redox system on boron-doped diamond electrode

Diamond and Related Materials ◽

10.1016/j.diamond.2019.01.021 ◽

2019 ◽

Vol 93 ◽

pp. 50-53 ◽

Cited By ~ 2

Author(s):

Naoki Kamoshida ◽

Seiji Kasahara ◽

Norihito Ikemiya ◽

Nagahiro Hoshi ◽

Masashi Nakamura ◽

...

Keyword(s):

Redox System ◽

Boron Doped Diamond ◽

Diamond Electrode ◽

Boron Doped ◽

Boron Doped Diamond Electrode ◽

Ir Study

Download Full-text

Voltammetric behavior of rutin at a boron-doped diamond electrode. Its electroanalytical determination in a pharmaceutical formulation

Open Chemistry ◽

10.2478/s11532-013-0292-6 ◽

2013 ◽

Vol 11 (10) ◽

pp. 1674-1681 ◽

Cited By ~ 8

Author(s):

Pınar Pınar ◽

Yavuz Yardım ◽

Zühre Şentürk

Keyword(s):

Stripping Voltammetry ◽

Adsorptive Stripping Voltammetry ◽

Cyclic Voltammograms ◽

Boron Doped Diamond ◽

Diamond Electrode ◽

Boron Doped ◽

Irreversible Oxidation ◽

Boron Doped Diamond Electrode ◽

Voltammetric Behavior ◽

First Time

AbstractThis paper examined for the first time, the possibilities of the usage of a boron-doped diamond electrode for the redox behavior of rutin using cyclic and adsorptive stripping voltammetry. The cyclic voltammograms showed a pair of redox peaks at lower potentials followed by an irreversible oxidation peak at higher positive potential. Using square-wave adsorptive stripping voltammetry, the compound yielded a well-defined voltammetric response in Britton-Robinson buffer, pH 4.0 at +0.48 V (vs. Ag/AgCl) (after 60 s accumulations at a fixed potential of 0.2 V). The calibration curve was linear in the concentration range from 0.01 µg mL−1 to 0.1 µg mL−1 (1.64×10−8 M − 1.64×10−7 M). A detection limit of 0.0017 µg mL−1 (2.78×10−9 M) was observed without any chemical modifications and electrochemical surface pretreatments. As an example, the practical applicability of boron-doped diamond electrode was tested with the measurement of rutin in dietary supplement products.

Download Full-text