Search

Your search keyword '"Aparicio, Irene"' showing total 391 results
Start Over Author "Aparicio, Irene"
391 results on '"Aparicio, Irene"'

2. Enantioselective Adsorption and Desorption Behaviour of Chiral Ofloxacin and Its Main Metabolites in Agricultural Soils

Author

Mejías, Carmen, Santos, Juan Luis, Martín, Julia, Aparicio, Irene, Alonso, Esteban, Ghosh, Arindam, Series Editor, Chua, Daniel, Series Editor, de Souza, Flavio Leandro, Series Editor, Aktas, Oral Cenk, Series Editor, Han, Yafang, Series Editor, Gong, Jianghong, Series Editor, Jawaid, Mohammad, Series Editor, Torres, Yadir, editor, Beltran, Ana M., editor, Felix, Manuel, editor, Peralta, Estela, editor, and Larios, Diego F., editor

Published
2024
Full Text
View/download PDF

4. An evaluation of dogs’ exposure to benzophenones through hair sample analysis

Author

Gonkowski Sławomir, Martín Julia, Rychlik Andrzej, Aparicio Irene, Santos Juan Luis, Alonso Esteban, and Makowska Krystyna

Subjects
endocrine disruptors, pets, dogs, benzophenones, exposure, Veterinary medicine, SF600-1100
Abstract

Benzophenones (BPs) are used in various branches of industry as ultraviolet radiation filters, but they pollute the natural environment, penetrate living organisms, and disrupt endocrine balance. Knowledge of the exposure of domestic animals to these substances is extremely scant. The aim of the study was to investigate long-term exposure of companion dogs to BPs and relate this to environmental factors.

Published
2024
Full Text
View/download PDF

12. Pharmaceuticals and Their Metabolites in Sewage Sludge and Soils: Distribution and Environmental Risk Assessment

Author

Santos, Juan Luis, Martín, Julia, Mejías, Carmen, Aparicio, Irene, Alonso, Esteban, Barceló, Damià, Series Editor, de Boer, Jacob, Editorial Board Member, Kostianoy, Andrey G., Series Editor, Garrigues, Philippe, Editorial Board Member, Hutzinger, Otto, Founding Editor, Gu, Ji-Dong, Editorial Board Member, Jones, Kevin C., Editorial Board Member, Knepper, Thomas P., Editorial Board Member, Negm, Abdelazim M., Editorial Board Member, Newton, Alice, Editorial Board Member, Nghiem, Duc Long, Editorial Board Member, Garcia-Segura, Sergi, Editorial Board Member, Núñez-Delgado, Avelino, editor, and Arias-Estévez, Manuel, editor

Published
2023
Full Text
View/download PDF

33. Multiclass Analysis for the Determination of Pharmaceuticals and Their Main Metabolites in Leafy and Root Vegetables.

Author

Mejías, Carmen, Arenas, Marina, Martín, Julia, Santos, Juan Luis, Aparicio, Irene, and Alonso, Esteban

Subjects
ROOT crops, VEGETABLE farming, SEWAGE sludge, SOLID phase extraction, SOLVENT extraction
Abstract

The irrigation of soils with reclaimed contaminated wastewater or its amendment with sewage sludge contributes to the uptake of pharmaceuticals by vegetables growing in the soil. A multiresidue method has been devised to determine five pharmaceuticals and nine of their main metabolites in leafy and root vegetables. The method employs ultrasound-assisted extraction, clean-up via dispersive solid-phase extraction, and analysis through liquid chromatography–tandem mass spectrometry. Box–Behnken design was used to refine variables such as extraction solvent volume, time of extraction, number of extraction cycles, and the type and amount of d-SPE sorbent. The method achieved linearity (R2) greater than 0.994, precision (relative standard deviation) under 16% for most compounds, and detection limits ranging from 0.007 to 2.25 ng g−1 dry weight. This method was applied to a leafy vegetable (lettuce) and to a root vegetable (carrot) sourced from a local market. Parent compounds were detected at higher concentrations than their metabolites, with the exception of carbamazepine-10,11-epoxide. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

40. Adsorption of Macrolide Antibiotics and a Metabolite onto Polyethylene Terephthalate and Polyethylene Microplastics in Aquatic Environments.

Author

Mejías, Carmen, Martín, Julia, Martín-Pozo, Laura, Santos, Juan Luis, Aparicio, Irene, and Alonso, Esteban

Subjects
MACROLIDE antibiotics, POLYETHYLENE terephthalate, DISSOLVED organic matter, MICROPLASTICS, EMERGING contaminants
Abstract

Microplastics (MPs) and antibiotics are emerging pollutants widely found in aquatic environments, potentially causing environmental harm. MPs may act as carriers for antibiotics, affecting their environmental distribution. This study investigates the adsorption of four macrolide antibiotics and a metabolite onto two types of MPs: polyethylene terephthalate (PET) and polyethylene (PE). Results revealed a linear isotherm adsorption model, with higher adsorption to PET than to PE (R2 > 0.936 for PE and R2 > 0.910 for PET). Hydrophobic interactions and hydrogen bonding could be the main adsorption mechanisms, with pore filling potentially involved. Reduced particle size enhances adsorption due to the increase of active adsorption sites. This increasement is more pronounced in PE than in PET, leading to an 11.6% increase in the average adsorption of all macrolides to PE, compared to only 5.1% to PET. Dissolved organic matter inhibits adsorption (azithromycin adsorption to PE was reduced from 12% to 5.1%), while salinity enhances it just until 1% salinity. pH slightly influences adsorption, with maximal adsorption at neutral pH. Results in real samples showed that complexity of the matrix decreased adsorption. Overall, these findings indicate that PE and PET MPs can be a vector of macrolides in aquatic environments. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results