A5068963650- Analytical chemistry methods development
- Pesticide Residue Analysis and Safety
- Environmental Toxicology and Ecotoxicology
- Pesticide and Herbicide Environmental Studies
- Bee Products Chemical Analysis
- Insect and Pesticide Research
- Toxic Organic Pollutants Impact
- Adsorption and biosorption for pollutant removal
- Pesticide Exposure and Toxicity
- Effects and risks of endocrine disrupting chemicals
- Pharmacological Effects and Assays
- Parasitic Infections and Diagnostics
- Environmental Chemistry and Analysis
- Pharmaceutical and Antibiotic Environmental Impacts
- Marine Biology and Environmental Chemistry
- Insects and Parasite Interactions
- Dye analysis and toxicity
- Biochemical Analysis and Sensing Techniques
- Nanocomposite Films for Food Packaging
- Dyeing and Modifying Textile Fibers
- Membrane Separation Technologies
- Agricultural Practices and Plant Genetics
- Marine Toxins and Detection Methods
- Postharvest Quality and Shelf Life Management
- Water Treatment and Disinfection
Universidade Federal do Rio Grande
2015-2025
Brazilian National Association of Graduate Programs in Communication
2016-2020
University of Rio Grande and Rio Grande Community College
2017
Universidade Federal do Rio Grande do Sul
2014-2015
This study evaluated the environmental occurrence of fifty-one pesticides, pharmaceuticals and personal care products (PPCPs) in surface drinking water samples collected southern Brazil over a 4-year period.The method used involved stage based on solid-phase extraction, followed by liquid chromatography tandem mass spectrometry.Thirty compounds were detected (22 different pesticides 8 PPCPs) at least four identified more than 50% samples.Atrazine was most frequently pesticide it found...
Clean extracts are essential in LC-MS/MS, since the matrix effect can interfere analysis. Alternative materials which be used as sorbents, such chitosan clean-up step, cheap and green options. In this study, from shrimp shell waste was evaluated a sorbent QuEChERS method order to determine multi-residues of veterinary drugs different types milk, i. e., fatty matrices. After optimization, showed correlation coefficients above 0.99, LOQs ranged between 1 50μgkg-1 recoveries 62 125%, with...
This work investigates the adsorption of benzo[a]pyrene (BaP) using a charcoal adsorbent derived from sewage treatment plant sludge. BaP is polycyclic aromatic hydrocarbon (PAH), carcinogenic to humans, which his used by World Health Organization as marker for all PAH mixtures. The was produced pyrolysis (500 °C, 4 h) municipal resulting biochar presented mesoporous and oxygenated functional groups that are beneficial benzo[a]pyrene. material contained graphitic structures, suggesting...
This study evaluated relations among nutrients, bioactive compounds and antioxidant activity of commercial tomato varieties grown in field conditions order to identify their biological potential by the Principal Component Analysis (PCA). Four (Long Life, Italian, Khaki Cherry), homogenized maturation stage (color, sugar/acidity ratio pH) were regarding macro components (sugars, pectin minerals) functional ones (carotenoids, phenolic ascorbic acid). Cherry tomatoes stood out for lycopene...
Currently, several researchers have been warning about problems caused by using pesticides in Brazil and the World.Nevertheless, more of these compounds are used to control integrity crops.It is case most cities Southwestern region Paraná, a that mainly agricultural.The present study monitors 29 water resources from five region.The method employed for determination was previously published, which routinely applied at laboratory.Eight were quantified evaluated waters: atrazine, epoxyconazole,...
Two fast methods employing dilute-and-shoot and SPE were evaluated for determination of <italic>S</italic>-metolachlor Metolachlor-OA in runoff water samples.
Honey is a natural food derived from nectar and other plant secretions, collected, processed by bees. To be safely consumed, it must free of chemical contamination have quality identity parameters following established standards. The continuous search for agricultural productivity has increased the use pesticides, widely used in crops. Residues these compounds been found honey samples. This work aimed to determine physicochemical verify presence pesticides Apis mellifera bee sold regions...