A5033682237- Analytical chemistry methods development
- Analytical Chemistry and Chromatography
- Forensic Toxicology and Drug Analysis
- Pesticide Residue Analysis and Safety
- Advanced Chemical Sensor Technologies
- Mercury impact and mitigation studies
- Pharmaceutical and Antibiotic Environmental Impacts
- Analytical Methods in Pharmaceuticals
- Toxic Organic Pollutants Impact
- Dye analysis and toxicity
- Microfluidic and Capillary Electrophoresis Applications
- Mass Spectrometry Techniques and Applications
- Phase Equilibria and Thermodynamics
- Electrochemical Analysis and Applications
- Biosensors and Analytical Detection
- Environmental Toxicology and Ecotoxicology
- Analytical Chemistry and Sensors
- Chemical Analysis and Environmental Impact
- Pharmacological Effects and Assays
- Water Quality Monitoring and Analysis
- Neurotransmitter Receptor Influence on Behavior
- Hormonal and reproductive studies
- Antibiotics Pharmacokinetics and Efficacy
- Spectroscopy and Chemometric Analyses
- Indoor Air Quality and Microbial Exposure
Universidade de Santiago de Compostela
2014-2023
Instituto de Investigación Sanitaria de Santiago
2017
Institute of Forensic Sciences
2012
Institute of Forensic Science
2012
Faculty (United Kingdom)
2010
Universidad de Santiago de Chile
1992-2003
U.S. Air Force Institute of Technology
2003
A new, fast, simple, and effective ultrasound-assisted dispersive liquid-liquid microextraction procedure (UA-DLLME) for the gas chromatography-mass spectrometry (GC–MS) determination of malondialdehyde, acrolein, 4-hydroxy-2-nonenal in beverages was successfully developed. 2,4-Dinitrophenylhydrazine derivatization performed during extraction. An asymmetrical 3541//18 screening design a central composite surface response were used to investigate influence most critical factors extraction...
A simple and rapid method is described for the extraction determination of methylmercury in marine sediments. The procedure was based on quantitative microwave-assisted from aquatic sediment samples using hydrochloric acid toluene as solvents. Two- three-level factorial designs have been used to optimize microwave process. Factors such temperature, amount, time, solvent (toluene) volume were considered. results suggest that temperature amount are statistically significant factors. analysis...
Opioids and cocaine are widely used at present, both for recreational purposes as drugs of abuse. This raises the need to develop new analytical methods specifically designed simultaneous detection several abuse in biological samples. In this work, dispersive liquid-liquid microextraction (DLLME) was assessed a sample treatment extraction morphine (MOR), 6-acetylmorphine (6AM), (COC), benzoylecgonine (BZE) methadone (MET) from human plasma. Preliminary assays were done before developing an...
A simple and rapid microwave-assisted extraction (MAE) procedure was developed optimized for phenol, o-cresol, m-cresol p-cresol in soil samples. The spiked used prepared 25 d before treatment to simulate weathering processes allow the formation of analyte-matrix interactions. samples, immersed hexane–acetone, were irradiated with microwaves a closed-vessel system. Optimization method achieved by using factorial design approach on parameters such as volume solvent, percentage acetone...
The persistence, ubiquity, and toxicity of polyhalogenated compounds, together with their presence in fish feed, make it necessary to monitor these organic pollutants the routine quality assurance programs aquaculture activities, as this food chain is a source toxic compounds for human consumers. A new approach based on simultaneous supercritical fluid extraction-sample cleanup, followed by solid-phase microextraction-gas chromatography/mass spectrometry (SFE-SPME-GC/MS/MS) has been...
Ultrasound-assisted dispersive liquid–liquid microextraction (UA-DLLME) combined with ultra-performance liquid chromatography (UPLC) was developed for the determination of seven benzodiazepines (alprazolam, bromazepam, clonazepam, diazepam, lorazepam, lormetazepam and tetrazepam) in urine samples hospital wastewater. Several parameters affecting UA-DLLME efficiency such as type solvent volume ionic strength were investigated. The effects pH, ultrasonic time extraction on studied...