A5081815597- Electrochemical Analysis and Applications
- Advanced oxidation water treatment
- Electrochemical sensors and biosensors
- Analytical Chemistry and Sensors
- Advanced Photocatalysis Techniques
- Corrosion Behavior and Inhibition
- Hydrogen embrittlement and corrosion behaviors in metals
- Advancements in Battery Materials
- Chemistry Education and Research
- Supercapacitor Materials and Fabrication
- Titanium Alloys Microstructure and Properties
- Conducting polymers and applications
- Dye analysis and toxicity
- Anodic Oxide Films and Nanostructures
- Advanced Battery Materials and Technologies
- Analytical Methods in Pharmaceuticals
- Pharmaceutical and Antibiotic Environmental Impacts
- Diamond and Carbon-based Materials Research
- Concrete Corrosion and Durability
- Orthopaedic implants and arthroplasty
- Electrostatics and Colloid Interactions
- TiO2 Photocatalysis and Solar Cells
- Science and Science Education
- Advanced Chemical Sensor Technologies
- Water Quality Monitoring and Analysis
Universidade Federal de São Carlos
2014-2023
Universidade Federal de Uberlândia
2017
Universidade Federal de Goiás
2014
GTx (United States)
2014
SRI International
1994
Menlo School
1994
The independent determination of two β-blocker agents, namely propranolol (PROP) and atenolol (ATN), in pharmaceutical formulations using square-wave voltammetry a cathodically pretreated boron-doped diamond electrode is described. These electroanalytical determinations or were carried out 0.1 mol L−1 H2SO4 0.5 NaNO3 (pH 1.0, adjusted with concentrated HNO3), respectively. Excellent linear calibration curves, ranging from 0.20 to 9.0 μmol for PROP 2.0 41 ATN, detection limits 0.18 0.93 L−1,...
Abstract The several outstanding properties of boron‐doped diamond electrodes (BDDEs) have allowed their application for various purposes, among them electrochemical sensing. However, the response many redox species on BDDEs can be strongly dependent whether surfaces are predominantly hydrogen‐ (HT) or oxygen‐terminated (OT). Fortuitously, pretreatments themselves used to enrich in situ BDEE surface one other type termination. a cathodically pretreated BBDE (CPT‐BDDE) becomes enriched HTs,...
A method for simultaneous determination of butylated hydroxyanisole (BHA) and hydroxytoluene (BHT) in food was developed that uses multiple pulse amperometry (MPA) with flow injection analysis (FIA). Determination these phenolic antioxidants carried out a cathodically pretreated boron-doped diamond electrode an aqueous ethanolic (30% ethanol, v/v) 10 mmol L−1 KNO3 solution (pHcond = 1.5) as supporting electrolyte. dual-potential waveform, at Edet1 850 mV/200 ms Edet2 1150 versus Ag/AgCl (3.0...
The electrochemical response of many redox species on boron-doped diamond (BDD) electrodes can be strongly dependent the type chemical termination their surface, hydrogen (HT-BDD) or oxygen (OT-BDD). For instance, an HT-BDD electrode [Fe(CN)6](3-/4-) system presents a reversible voltammetric behavior, whereas oxidation overpotential ascorbic acid (AA) is significantly decreased. Moreover, activity BDD affected by pretreatments, with cathodic pretreatments (CPTs) leading to behaviors...
The performances of distinct BDD anodes (boron doping 100, 500 and 2500 ppm, with sp3/sp2 carbon ratios 215, 325, 284, respectively) in the electrochemical degradation ciprofloxacin – CIP (0.5 L 50 mg L−1 0.10 M Na2SO4, at 25 °C) were comparatively assessed using a recirculating flow system filter-press reactor. Performance was by monitoring total organic (TOC) concentrations, oxidation intermediates, antimicrobial activity against Escherichia coli as function electrolysis time. removal...