A5057990764- Analytical Chemistry and Chromatography
- Analytical chemistry methods development
- Electrochemical sensors and biosensors
- Various Chemistry Research Topics
- Neonatal Health and Biochemistry
- Biosensors and Analytical Detection
- Neonatal Respiratory Health Research
- Advanced Chemical Sensor Technologies
- Electrochemical Analysis and Applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Coffee research and impacts
- Analytical Chemistry and Sensors
- Biochemical Analysis and Sensing Techniques
- Chemical Safety and Risk Management
- Antibiotics Pharmacokinetics and Efficacy
- Infant Development and Preterm Care
- Microfluidic and Capillary Electrophoresis Applications
- Mass Spectrometry Techniques and Applications
- Experimental Learning in Engineering
- Analytical Methods in Pharmaceuticals
- Phytochemicals and Antioxidant Activities
- Chromatography in Natural Products
- Carbon and Quantum Dots Applications
- Essential Oils and Antimicrobial Activity
- Plant biochemistry and biosynthesis
National Autonomous University of Honduras
2019-2023
Hospital Universitari i Politècnic La Fe
2022
Universitat de València
2019-2021
Significant changes in the teaching–learning process have occurred since appearance of COVID-19 pandemic caused by SARS-CoV 2 coronavirus, due to limited mobility and closure university education centers. In this context, essential challenges were presented for teachers students finish academic courses addressing programmatic contents without undermining learning quality. Likewise, teaching upper-division undergraduate subjects with a high load laboratory practices represents greater...
Since the appearance of COVID-19 pandemic and its subsequent stage, changes produced in chemistry teaching process have allowed educators to use a wide range strategies, methodologies, tools promote student learning. To carry out laboratory practices, some strategies reported include simulators educational software, as well development remote lab activities. In recent years, microextraction techniques greening sample treatment represent an important topic instrumental analytical courses,...
With the explosive growth of dietary supplements industry, new demands have emerged that cannot be faced with sophisticated instrumentation available in well-equipped laboratories. In particular, there is a demand for simplified and easy-to-use instruments, capable providing results short times analysis. this study, hand-portable miniaturized liquid chromatograph (portable LC) has been tested determination chlorogenic acids (CGAs) products intended to supplement diet elaborated green coffee...
A method has been developed for the separation and quantification of terpenic compounds typically used as markers in chemical characterization resins based on capillary liquid chromatography coupled to UV detection. The sample treatment, detection conditions have optimized order analyze different polarities volatilities a single chromatographic run. monoterpene limonene triterpenes lupeol, lupenone, β-amyrin, α-amyrin selected model compounds. proposed provides linear responses precision...
Abstract Aim To verify if the concentrations of caffeine in saliva are comparable to serum preterm infants treated with for apnoea prematurity. Methods Prospective observational study. Eligible patients were newborn < 37 weeks gestational age oral or intravenous Two paired samples saliva-blood collected per patient. Tube solid phase microextraction coupled on-line capillary liquid chromatography diode array detection used analysis. Results A total 47 newborns a median 28 [26–30] and mean...
Vegetal wastes are an interesting source for the synthesis of nanostructured carbon materials, which potentially useful in various applications. Carbon black agglomerates (CBA) obtained from olive pits, synthesized our previous research, had a low crystalline structure typical this type with pore size 2.27 nm, confirming their micro/mesoporous structure, and high surface value around 587 m2/g. These materials were used extraction caffeine energy drinks using green-approach micro-sample...
The growing development of Nanotechnology has allowed the synthesis and characterization nanomaterials with peculiar physicochemical properties. These have been applied in various scientific industrial sectors. present study established carbon black agglomerates (CBA) from waste vegetal materials as a source renewable raw using simple, fast, effective procedure. Once this nanostructured material was obtained, several analytical techniques were to establish its main characteristics, including...
Dietary supplements of botanical origin are increasingly consumed due to their content plant constituents with potential benefits on health and wellness. Among those constituents, terpenes gaining attention because diverse biological activities (anti-inflammatory, antibacterial, geroprotective, others). While most the existing analytical methods have focused establishing terpenic fingerprint some plants, typically by gas chromatography, capable quantifying representative in herbal...
The development and application of a simulator designed with Excel spreadsheets to teach procedural skills in atomic absorption spectrometry emission are proposed. For the simulator, different analytical procedures were followed including analysis pharmaceutical, forensic, environmental samples. worksheets enable students modify instrumental conditions (such as type gas, gas flow, lamp, wavelength), prepare reagents, standards, samples, obtain signals, perform data results. learning activity...
This study proposes a novel device called micro polymeric magnetized bar adsorptive extraction (µ-PMBAE), as an and enrichment technique for trace analysis in aqueous samples. These micro-bar absorbent devices were prepared using easily accessible low-cost materials, incorporating different sorbent materials into polymer introducing small piece of neodymium magnet. Several stability tests applied to determine their robustness, stability, weight variation; finally, ibuprofen concentration...
This study proposes a novel device called micro polymeric magnetized bar adsorptive extraction (µ-PMBAE), as an and enrichment technique for trace analysis in aqueous samples. These micro-bar absorbent devices were prepared using easily accessible low-cost materials, incorporating different sorbent materials into polymer introducing small piece of neodymium magnet. Several stability tests applied to determine their robustness, stability, weight variation; finally, ibuprofen concentration...