Boron-doped Diamond Electrodes for Voltammetric Determination of Benzophenone-3

Zavázalová, Jaroslava; Procházková, Kateřina; Schwarzová‐Pecková, Karolina

doi:10.1080/00032719.2014.1003425

Cited by 35 publications

(10 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nowadays, BDD films seem to be a suitable anode materials in modern electroanalysis such as clinical, environmental and sanitation applications. The BDD anodes have displayed a sensitive platform in analytical determination of drugs , biomolecules and other organic species as well as in measuring chemical oxygen and trace metals in water . However, use of said electrode films was decided against due to the difficulties in setup requirements involved in the deposition procedures as well as to the passive nature of BDD films that makes them unable to interact or bond to organic compounds .…”

Section: Introductionmentioning

confidence: 99%

Chlorpromazine Electro‐oxidation at BDD Electrode Modified with nZVI Nanoparticles Impregnated NiAl LDH

et al. 2020

View full text Add to dashboard Cite

Nanocomposite of nanoscale zero‐valent iron (nZVI) and layered double hydroxide (LDH) was used as modifier for boron‐doped diamond electrode in determination of anti‐psychotic drug chlorpromazine (CPZ). nZVI nanoparticles were prepared by liquid phase reduction of ferric chloride with sodium borohydride on the surface of NiAl LDH matrix owing to the strong exchange and confinement efficiency of LDH. The structure, binding and surface properties of the nZVI@LDH nanocomposite were monitored using powder X‐ray diffractometry, FT‐IR spectroscopy, scanning and transmission microscopy and BET techniques. The electrochemical properties of the modified electrode were investigated by CV and EIS, performed in a phosphate buffer containing ferro/ferricyanide as redox probe. The modified electrode exhibited excellent electrochemical performance compared with unmodified electrode. As regard potential application of the nanocomposite surface to the CPZ detection, square‐wave voltammetric signals showed a good linear correlation over CPZ concentrations in a broad range from 0.1 to 8.0 μM with low detection limit of 0.005 μM. Nevertheless, these results suggest that the proposed nanocomposite modifier surface provides exceptional synergy and significant enhancement effect to the voltammetric response of CPZ and thus could be applied as highly efficient and stable platform of sensors in clinical analysis.

show abstract

Section: Introductionmentioning

confidence: 99%

Chlorpromazine Electro‐oxidation at BDD Electrode Modified with nZVI Nanoparticles Impregnated NiAl LDH

et al. 2020

View full text Add to dashboard Cite

show abstract

“…At highly positive potentials, in the region of water decomposition, reactive hydroxyl radicals are generated, which oxidize organic compounds into smaller molecules and finally into CO 2 and H 2 O. Thus, any polymer film is removed from the electrode surface, as presented also for other phenolic compounds at BDD electrodes [33,50,[73][74][75]. This regeneration resulted in relative standard deviation (RSD) values of signal heights 8.6 % (DPV) and 2.6 % (SWV) for o-cresol, and 15.6 % (DPV) and 12.6 % (SWV) for p-cresol.…”

Section: Methodsmentioning

confidence: 99%

“…Interestingly, two types of pH-dependence are being reported for peak potentials E p of simple phenolic compounds. Most frequently, the linear dependence of E p vs. pH spanning over the pH corresponding to pK a with a slope of about 59 mV per pH unit is attributed to oneelectron and one-proton process, e. g., for phenol [64] on a GCE, benzophenone-3 on an anodically oxidized BDD electrode [50], and 2,4-dichlorophenol on both as-received and anodically-oxidized BDD electrodes [75]. On the other hand, pH-independency at pH values smaller than pK a was reported, e. g. for 4-chloro-3-methylphenol on anodically oxidized BDD electrode [78].…”

Section: Effect Of Phmentioning

confidence: 99%

“…Unmodified BDD electrodes were also used as an anode for electrochemical incineration of cresols [3,5,[40][41][42]. The unique properties of this electrode material, such as good mechanical and chemical stability, low background current, wide potential window in the anodic region, and high resistivity to adsorption of organic compounds have been utilized in a number of voltammetric methods for determination of various oxidizable compounds [43][44][45][46][47][48] including phenolic compounds such as phenol [49], benzophenone-3 [50], nitrophenols [51], or chlorophenols [52][53][54]. Typically, anodically pretreated BDD films were used for this purpose as they provide high stability and the possibility of electrochemical activation of the surface [55][56].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of Carbon‐based Electrodes for Detection of Cresols in Voltammetry and HPLC with Electrochemical Detection

et al. 2020

View full text Add to dashboard Cite

The electrochemical behavior of o-cresol and pcresol was investigated using boron doped diamond (BDD) and sp 2 carbon-based electrodes. BDD electrodes with different boron doping levels were used to optimize conditions for detection of cresols using differential pulse and square-wave voltammetry. Comparable detection limits from 2.74 μM to 0.79 μM were achieved, using in-situ anodic pretreatment to prevent fouling of electrode surface. Lower detection limits for cresols and other phenolic pollutants, in the 10 À 7 M concentration range, were obtained using amperometric detection in HPLC. The proposed voltammetric and HPLC methods were utilized for determination of cresols in model river water samples.

show abstract

“…The main advantages of BDDE are wide usable potential window in anodic as well as in cathodic area, low capacitive current, low noise, stable and repeatable current response, and minimal risk of passivation due to the low adsorption . BDDE is most commonly used for determination of organic compounds by monitoring of the appropriate oxidation reactions .…”

Section: Introductionmentioning

confidence: 99%

Oxidation Behavior of Insecticide Azoxystrobin and its Voltammetric Determination Using Boron‐doped Diamond Electrode

et al. 2019

View full text Add to dashboard Cite

Electrochemical oxidation of azoxystrobin, a systemic fungicide commonly used in agriculture to protect a wide variety of crops, was investigated using cyclic voltammetry with a boron‐doped diamond electrode (BDDE) in aqueous buffer solutions. Two pH independent irreversible anodic current peaks controlled mostly by diffusion were observed in wide pH range (2 to 12) at potentials +1600 mV and +2150 mV vs. saturated silver‐silver chloride electrode. Mechanism of the electrochemical oxidation was proposed and supported with high performance liquid chromatography/mass spectrometry analysis of azoxystrobin solutions electrolyzed on carbon fiber brush electrode. The main product of the first two‐electron oxidation step was identified as methyl 2‐(2‐{[6‐(2‐cyanophenoxy)pyrimidin‐4‐yl]oxy}phenyl)‐2‐hydroxy‐3‐oxopropanoate. An analytical method for the determination of azoxystrobin in water samples and pesticide preparation by differential pulse voltammetry with BDDE was developed. The method provides a wide linear dynamic range (3.0×10−7 to 2.0×10−4 mol L−1) with limit of detection 8×10−8 mol L−1. Accuracy of the method was evaluated by the addition and recovery method with recoveries ranging from 96.0 to 105.8 %. Interference study proved sufficient selectivity of the developed voltammetric method for the azoxystrobin determination in presence of azole fungicides as well as pesticides used to prevent the same crops.

show abstract

Boron-doped Diamond Electrodes for Voltammetric Determination of Benzophenone-3

Cited by 35 publications

References 30 publications

Chlorpromazine Electro‐oxidation at BDD Electrode Modified with nZVI Nanoparticles Impregnated NiAl LDH

Chlorpromazine Electro‐oxidation at BDD Electrode Modified with nZVI Nanoparticles Impregnated NiAl LDH

Comparison of Carbon‐based Electrodes for Detection of Cresols in Voltammetry and HPLC with Electrochemical Detection

Oxidation Behavior of Insecticide Azoxystrobin and its Voltammetric Determination Using Boron‐doped Diamond Electrode

Contact Info

Product

Resources

About