A5010024776- Pesticide Residue Analysis and Safety
- Analytical chemistry methods development
- Potato Plant Research
- Edible Oils Quality and Analysis
- Effects and risks of endocrine disrupting chemicals
- Analytical Chemistry and Chromatography
- Pharmaceutical and Antibiotic Environmental Impacts
- Toxic Organic Pollutants Impact
- Environmental Toxicology and Ecotoxicology
- Dye analysis and toxicity
- Mycotoxins in Agriculture and Food
- Melamine detection and toxicity
- Mass Spectrometry Techniques and Applications
- Fatty Acid Research and Health
- Insect and Pesticide Research
- Heavy Metals in Plants
- Plant-Microbe Interactions and Immunity
- Pharmacological Effects and Assays
- Agricultural and Food Sciences
- Water Quality and Pollution Assessment
- Plant Pathogens and Fungal Diseases
- Animal Ecology and Behavior Studies
- Biochemical Analysis and Sensing Techniques
- Herbal Medicine Research Studies
- Water Treatment and Disinfection
Universidade do Porto
2021-2025
Rede de Química e Tecnologia
2021-2025
Instituto de Tecnologia de Alimentos
2022-2023
Universidade Estadual de Campinas (UNICAMP)
2016-2021
Centre d'Investigacions sobre Desertificació
2017
Universitat de València
2017
Universidade Estadual Paulista (Unesp)
2009-2015
Instituto Adolfo Lutz
2011
A reliable and greener alternative to the usual extraction methods is reported for determination of pesticide residues in soybeans. This novel approach combines classical QuEChERS method with a DLLME (dispersive liquid-liquid microextraction) step, utilizing deep eutectic solvent (DES) - camphor: hexanoic acid (1:1 molar ratio) as microextraction solvent. DES has never been employed analysis by gas chromatography-mass spectrometry complex matrices like Plackett-Burman screening design was...
In this study, 21 pesticides and 4 aflatoxins were monitored in baby food marketed Brazil, applying ultra-high-performance liquid chromatography coupled to quadrupole-Orbitrap mass spectrometry (UHPLC-Q-Orbitrap-MS). The quick, easy, cheap, effective, rugged, safe (QuEChERS) extraction method combined with dispersive solid-phase (d-SPE) clean-up was applied primary secondary amine (PSA), octadecylsilane (C18) C18 silica coated zirconium dioxide (Z-Sep+) used during the stage. Suitable...
Pentabromodiphenyl ether (BDE-99) and bisphenol A (BPA) are synthetic organic compounds present in several daily use products. Due to their physicochemical properties, they ubiquitously aquatic ecosystems considered highly persistent. Recent evidence has confirmed that both emerging toxic humans terrestrial mammals eliciting a wide range of detrimental effects at endocrine immune levels. However, the ecotoxicological responses can trigger vertebrate marine species have not yet been...
Deep eutectic solvents (DESs), a novel class of eco-friendly solvents, are attracting considerable attention in extraction techniques. In this study, hydrophobic DES, created by combining quaternary ammonium salt and hexanoic acid, was coated onto commercial cellulose membrane for polycyclic musks (cashmeran, celestolide, galaxolide, tonalid) microextraction from surface waters followed gas-chromatography–mass spectrometry (GC MS) analysis. A series DESs were synthesized characterized to...
A "green" analytical method is reported for the determination of phenolic acids in mushrooms. The sample preparation involves aqueous extraction based on acid hydrolysis, followed by analysis extracts capillary electrophoresis with diode array detector (CE-DAD). central composite design was used to obtain optimum conditions compounds from mushrooms, including concentration hydrochloric (2 mol·L−1), temperature (80 °C) and time (30 min). proposed avoids organic solvents such as methanol...
Estuaries are continually threatened by anthropogenic pressures, consequently, a large group of contaminants harmful to human health affects the aquatic biota; therefore, it is necessary monitor their quality. This study deals with determination compounds representing different endocrine-disrupting (EDCs) classes [21 pesticides, 4 polycyclic musk fragrances, UV-filters, 7 bisphenols, 6 polybrominated diphenyl ethers (PBDEs) and 8 methoxylated (MeO-BDEs)] in several estuarine species (fish,...
A liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) analytical method using a modified QuEChERS sample preparation for the analysis of insecticide residues in honey was developed and validated. The use Plackett Burman design step proved to be effective optimizing recovery reducing matrix effect. For quantification purposes, extract-matched curves were constructed showing linearity (R2) higher than 0.99. precision (RSD%) lower 20% accuracy between 74% 104%. Lower limits maximum...