“…The boron‐doped diamond electrode (BDDE) has been extensively used in electrosynthesis and electroanalysis. Due to superior electrochemical properties that include wide potential window, low background and capacitive current, reduced fouling and chemical stability, boron‐doped diamond presents also an attractive material for electrochemical detection of organic compounds in pharmaceutical and environmental samples . Very recently, BDDE was used for electrochemical oxidation of cholecalciferol in order to generate vitamin D metabolites , but not for analytical purposes.…”
A sensitive square‐wave voltammetry method was developed to determine cholecalciferol (vitamin D3) in pharmaceutical products at boron‐doped diamond electrode as a working electrode. Vitamin D3 provided a well‐defined voltammetric peak at around +1.00 V (vs. Ag/AgCl, 3.5 mol dm−3) in 0.02 mol dm−3 Britton‐Robinson buffer pH 5.0 prepared in 50 % ethanol. The influence of various factors such as type and pH of the supporting electrolyte, scan rate and square‐wave parameters were studied and optimized. Under optimum conditions, the oxidation peak current increased linearly with the concentration of vitamin D3 over the range of 2 to 200 μmol dm−3. The calculated limit of detection and limit of quantitation were 0.17 μmol dm−3 and 0.51 μmol dm−3, respectively. The boron‐doped diamond electrode exhibited specific recognition capability for cholecalciferol amongst possible interferences, and the determination of vitamin D3 was possible in samples such as commercial pharmaceutical products without complicated sample pretreatments.
“…The boron‐doped diamond electrode (BDDE) has been extensively used in electrosynthesis and electroanalysis. Due to superior electrochemical properties that include wide potential window, low background and capacitive current, reduced fouling and chemical stability, boron‐doped diamond presents also an attractive material for electrochemical detection of organic compounds in pharmaceutical and environmental samples . Very recently, BDDE was used for electrochemical oxidation of cholecalciferol in order to generate vitamin D metabolites , but not for analytical purposes.…”
A sensitive square‐wave voltammetry method was developed to determine cholecalciferol (vitamin D3) in pharmaceutical products at boron‐doped diamond electrode as a working electrode. Vitamin D3 provided a well‐defined voltammetric peak at around +1.00 V (vs. Ag/AgCl, 3.5 mol dm−3) in 0.02 mol dm−3 Britton‐Robinson buffer pH 5.0 prepared in 50 % ethanol. The influence of various factors such as type and pH of the supporting electrolyte, scan rate and square‐wave parameters were studied and optimized. Under optimum conditions, the oxidation peak current increased linearly with the concentration of vitamin D3 over the range of 2 to 200 μmol dm−3. The calculated limit of detection and limit of quantitation were 0.17 μmol dm−3 and 0.51 μmol dm−3, respectively. The boron‐doped diamond electrode exhibited specific recognition capability for cholecalciferol amongst possible interferences, and the determination of vitamin D3 was possible in samples such as commercial pharmaceutical products without complicated sample pretreatments.
“…Both processes were carried out in 0.5 M H 2 SO 4 . . In order to guarantee a clean electrode surface in the presence of surfactant, before each voltammetric experiment, electrode was very softly rubbed with a polishing pad (a simple mechanical polishing step) and then rinsed with deionized water .…”
The present work describes the individual, selective and simultaneous quantification of acetaminophen (ACP) and tramadol hydrochloride (TRA) using a modification‐free boron‐doped diamond (BDD) electrode. Cyclic voltammetric measurements revealed that the profile of the binary mixtures of ACP and TRA were manifested by two irreversible oxidation peaks at about +1.04 V (for ACP) and +1.61 V (for TRA) in Britton‐Robinson (BR) buffer pH 3.0. TRA oxidation peak was significantly improved in the presence of anionic surfactant, sodium dodecyl sulfate (SDS), while ACP signal did not change. By employing square‐wave stripping mode in BR buffer pH 3.0 containing 8×10−4 mol L−1 SDS after 30 s accumulation under open‐circuit voltage, the BDD electrode could be used for quantification of ACP and TRA simultaneously in the ranges 1.0–70 μg mL−1 (6.6×10−6–4.6×10−4 mol L−1) and 1.0–70 μg mL−1 (3.3×10−6–2.3×10−4 mol L−1), with detection limits of 0.11 μg mL−1 (7.3×10−7 mol L−1) and 0.13 μg mL−1 (4.3×10−7 mol L−1), respectively. The practical applicability of the proposed approach was tested for the individual and simultaneous quantification of ACP and/or TRA in the pharmaceutical dosage forms.
“…BDD can act as sensor towards many chemical compounds, e. g . hydrazine (industrial pollutant), isatin (dye), dissolved oxygen, sulfamethoxazole (antibiotic), iridium oxide, glucose, theophylline (diuretic), bentazone (herbicide) and atrazine (herbicide) in wastewater. COD determination can also be achieved by amperometric titration .…”
Section: Use Of Bdd Electrodes In Sensorsmentioning
confidence: 99%
“…The method is able to detect atrazine in the range of 0.05–40 μM with a detection limit of 10 nM and a good repeatability at the optimal square‐wave voltammetric parameters such as 60 Hz frequency, 5 mV step potential and 80 mV amplitude. Bentazone is another herbicide contaminating ground and surface waters with suspected reproductive toxicity potential for human . Jevtic et.…”
Section: Use Of Bdd Electrodes In Sensorsmentioning
confidence: 99%
“…Jevtic et. al . developed a facile sensing tool consisting of BDD electrode and using DP voltammetry in BR buffer (pH 4).…”
Section: Use Of Bdd Electrodes In Sensorsmentioning
The chemical stability and electrocatalytic properties of boron‐doped diamond (BDD) electrodes give rise to various applications. While wastewater treatment is the most widely studied field, the use of BDD for soil remediation and environmental sensing is currently investigated more and more. With regards to soil remediation, promising results have been reported for the treatment of soil washing solutions. Anodic oxidation using BDD at high current density allows high mineralization rates of biorefractory soil pollutants and extracting agents to be reached. At low current density, selective degradation of target pollutants has been achieved, thus allowing the reuse of extracting agents for further soil washing steps. BDD‐based electrochemical sensors have been studied for chemical oxygen demand determination, pesticide/pharmaceutical detection as well as other applications such as pH, O2 and analysis of various organic and inorganic compounds. Low detection limits, wide linear ranges and low standard deviations have been achieved. The main reasons behind the superiority of BDD sensors are the chemical stability, wide applicability and resistance of BDD towards biofouling. The beauty of BDD sensing is that it can work for a variety of organic and inorganic compounds under many physicochemical parameters.
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