A5086328865- Electrochemical Analysis and Applications
- Electrochemical sensors and biosensors
- Analytical Chemistry and Sensors
- Corrosion Behavior and Inhibition
- Advanced Chemical Sensor Technologies
- Concrete Corrosion and Durability
- Enzyme Catalysis and Immobilization
- Analytical chemistry methods development
- Advanced biosensing and bioanalysis techniques
- Semiconductor materials and devices
- Non-Destructive Testing Techniques
- Minerals Flotation and Separation Techniques
- bioluminescence and chemiluminescence research
- Analytical Chemistry and Chromatography
- Metal Extraction and Bioleaching
- Water Quality Monitoring and Analysis
- Material Properties and Applications
- Conducting polymers and applications
- Microbial Fuel Cells and Bioremediation
- Algal biology and biofuel production
- Cholinesterase and Neurodegenerative Diseases
- Gas Sensing Nanomaterials and Sensors
- Conservation Techniques and Studies
- Hydrogen embrittlement and corrosion behaviors in metals
- Microbial Metabolic Engineering and Bioproduction
Universidad Autónoma de Baja California
2014-2023
Mexicali Institute of Technology
2015-2016
Rede de Química e Tecnologia
2006-2014
Plovdiv University
2014
Instituto Tecnológico de Ciudad Juárez
2009
Laboratoire d’Electrochimie et de Physico-chimie des Matériaux et des Interfaces
1998-2007
Centre National de la Recherche Scientifique
1998
Bulgarian Academy of Sciences
1996
Institute of Physical Chemistry
1996
The present work discusses the problem of induced external electrical noise as well its removal from potential obtained Scanning Vibrating Electrode Technique (SVET) in pitting corrosion process aluminum alloy A96061 3.5% NaCl. An accessible and efficient solution this is presented with use virtual instrumentation (VI), embedded systems, discrete wavelet transform (DWT). DWT a computational algorithm for digital processing that allows obtaining Signal to Noise Ratio (SNR) superior those...
Purpose Aggressive environments that enhance indoor corrosion in industrial plants decrease the yielding of electronic equipment, causing electrical failures. The purpose present paper is to evaluate rates metals used devices as a function temperature, humidity and concentrations some air pollutants order predict optimal conditions preventing or minimizing corrosion. Design/methodology/approach Atmospheric mainly sulphur oxides, penetrating through small crevices holes into combination with...
Extracellular lipase production by Penicillium chrysogenum, Trichoderma harzianum and Aspergillus flavus was carried out through solid state fermentation using agro-industrial residues as substrates. For all three strains, the growth temperature 29±1 °C, 65% w (g/gds) moisture content. The effect of factors on rate investigated: initial pH (6.0 7.0), time (72 h, 96 h 120 h), type mixed substrate (wheat bran-olive oil, wheat bran-castor oil cake). process optimized applying a level factorial...
The validity of applying the readily available bare spectroscopic graphite electrode in pharmaceutical analysis as a cost-effective, simple, and efficient alternative to modified carbon-based electrodes was evaluated this work using paracetamol caffeine test analytes. cyclic voltammetry study on their electrochemical behavior revealed that display well-expressed oxidation peaks at potentials typically 0.51 V 1.36 vs. Ag, AgCl/KClsat, correspondingly is an adsorption-controlled process. Then...
Purpose The aim of this work is to study the corrosion and scaling factors, mechanisms processes affecting materials, equipment installations Cerro Prieto geothermal field (GTF). Design/methodology/approach physicochemical characteristics well fluids were analysed, recorded related phenomena. Findings high temperature salinity steam‐brine mixture presence hydrogen sulphide carbon dioxide impart a severe level corrosivity. Originality/value Corrosion control assure an efficient production...
Carbon nanohybrid material (CNF/ γ -Fe 2 O 3 ) was obtained via a modified sol-gel technique consisting of two steps: functionalization carbon nanofibers (CNF) in H SO 4 /HNO followed by synthesis using Fe(NO <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:mo>∙</mml:mo></mml:mrow></mml:math>9H O. As result, the iron content CNF/ increased more than twice from about 40% to 87% mass percent, compared pristine CNF and oxidized specimens, as proved energy...
The goal of this work is the evaluation analytical characteristics determinations performed using glucose oxidase and acetylcholinesterase based electrochemical sensors, developed applying original or optimized conventional methods enzyme immobilization.It was found that sensitivity determination, for example, varies from 0.048 to 3.36 mA L mol -1 cm -2 response time sensors -from 5 30 s, according method bioreceptor immobilization.The analysis affected activity immobilized biocomponent,...
AbstractPhosphoric acid (H3PO4, PA) is an industrial acid, produced from two main types of phosphate rock: sedimentary and igneous. In the classical wet process, process PA by a reaction between ore sulphuric forming 30% solids thick slurry, in three stages: acidulation, filtration concentration to produce 50%P2O5 acid. novel treated with HCl formation CaCl2; separated solvent extraction technology, obtaining highly concentrated, food grade recovering organic solvent. The industry has high...
In this study we describe a sensitive amperometric microbial biosensor that is fast, economic, reliable, and can compete with the existing proposed methods for vitamin B<sub>12</sub>determination.