Enginyeria Química i Química Analítica: Enviaments recents
Ara mostrant els elements 421-440 de 791
Power and limitations of biochemical methane potential (BMP) tests
As energy systems transition toward renewable sources, anaerobic digestion (AD), which can be used to recover energy from organic substrates, is receiving growing attention. AD research and practice both rely on biochemical ...
Abatement of ozone-recalcitrant micropollutants during municipal wastewater ozonation: kinetic modelling and surrogate-based control strategies
Although ozonation is nowadays recognized as one of the most efficient technologies for micropollutants abatement in municipal wastewater effluents, several of the compounds potentially present in those waters exhibit a ...
Estrategias de aprendizaje colaborativo en asignaturas experimentales
La presente comunicación se enmarca en el contexto del Espacio Europeo de Educación Superior, dirigido a diseñar, practicar y reflexionar sobre una enseñanza centrada en el aprendizaje de los estudiantes. Esta forma de ...
PSresin for the analysis of alpha-emitting radionuclides: Comparison of diphosphonic acid-based extractants
The analysis of radionuclides is complex, with high economic and time costs. For this reason, there is a need to develop new methods and strategies to reduce these costs. One important group in the analysis of radionuclides ...
Strategies for the multi-residue analysis of 100 pesticides by liquid chromatography-triple quadrupole mass spectrometry
Analytical strategies for screening, quantitation and confirmation of a group of 100 pesticides in fruit and vegetable samples by LC-MS and LC-MS/MS were developed. The pesticides studied belong to different chemical ...
A wearable biosensor for sweat lactate as a proxy for sport performance monitoring
In the last decade, sport performance assessment has significantly transformed due to the appearance of disruptive technologies. Subjective pen and paper notations have evolved into advanced wearable sensing systems that ...
Analysis, levels and seasonal variation of cyanotoxins in freshwater ecosystems
Nutrient over-enrichment in freshwater environments, together with the on-going climate change, favour the toxin-producing cyanobacteria bloom. Human health hazard may arise from drinking contaminated water. Additionally, ...
Alkaloid escholidine and its interaction with DNA structures
Berberine, the most known quaternary protoberberine alkaloid (QPA), has been reported to inhibit the SIK3 protein connected with breast cancer. Berberine also appears to reduce the bcl-2 and XIAP expression-proteins ...
Estudios experimentales en transmisión de calor. Balances de energía en un destilador de agua
Un destilador de agua es un elemento común en muchos laboratorios. Con pequeñas modificaciones puede emplearse como páctica para visualizar los balances de energia y hacer ver la influencia que sobre el rendimiento del ...
Comparison of three analytical methods for the determination of quinolones in pig muscle samples
This work presents a comparison between three analytical methods developed for the simultaneous determination of eight quinolones regulated by the European Union (marbofloxacin, ciprofloxacin, danofloxacin, enrofloxacin, ...
In-line preconcentration capillary zone electrophoresis for the analysis of haloacetic acids in water
Two in-line enrichment procedures (large volume sample stacking (LVSS) and field amplified sample injection (FASI)) have been evaluated for the capillary zone electrophoresis (CZE) analysis of haloacetic acids (HAAs) in ...
Impact of functional group types in ion exchange resins on rare earth element recovery from treated acid mine waters
Ion-exchange (IX) resins incorporating single functional groups (sulfonic or amino-phosphonic) and two functional groups (sulfonic and phosphonic) were evaluated for selective recovery of Rare Earth Elements (REEs) from ...
Ex-situ antimony screen-printed carbon electrode for voltammetric determination of Ni(II) - ions in wastewater
An Ex-situ antimony film screen-printed carbon electrode (Ex-situ SbSPCE) was successfully applied for the determination of Ni(II), by means of adsorptive stripping voltammetry using dimethylglyoxime as complexing agent, ...
Non-targeted high-performance liquid chromatography with ultraviolet and fluorescence detection fingerprinting for the classification, authentication, and fraud quantitation of instant coffee and chicory by multivariate chemometric methods
Non-targeted strategies based on high-performance liquid chromatography with ultraviolet detection (HPLC-UV) and fluorescence detection (HPLC-FLD) fingerprints were evaluated to accomplish the classification and authentication ...
Stabilization of metal and metalloids from contaminated soils using magnesia-based tundish deskulling waste from continuous steel casting
This study presents a groundbreaking exploration into the potential use of refractory tundish deskulling waste (TUN), a magnesium oxide-based by-product from continuous steel casting, as a stabilizing agent for remediating ...
Cyanobacteria and their secondary metabolites in three freshwater reservoirs in the United Kingdom
Background Bloom-forming cyanobacteria occur globally in aquatic environments. They produce diverse bioactive metabolites, some of which are known to be toxic. The most studied cyanobacterial toxins are microcystins, ...
Kinetics of 1-pentanol etherification without water removal
The effect of water on the kinetics of the liquid-phase dehydration of 1-pentanol to di-n-pentyl ether (DNPE) and water over Amberlyst 70 is revisited. To explain the strong inhibitor effect of water, two approaches were ...
Respondiendo a los Intereses de la Sociedad Actual desde la Química Analítica: Sostenibilidad y Autenticación
El grupo de Fluorescencia del Departamento de Ingeniería Química y Química Analítica de la Universitat de Barcelona está constituido por los profesores José Luis Beltrán, José Francisco García, Mercè Granados, Óscar Núñez ...
Nutritional, molecular, and functional properties of a novel enzymatically hydrolyzed porcine plasma product
In the present study, an enzymatically hydrolyzed porcine plasma (EHPP) was nutritionally and molecularly characterized. EHPP molecular characterization showed, in contrast to spray-dried plasma (SDP), many peptides with ...
Exploring the potential of co-fermenting sewage sludge and lipids in a resource recovery scenario
In this study, co-fermentation of primary sludge (PS) or waste activated sludge (WAS) with lipids was explored to improve volatile fatty acid production. PS and WAS were used as base substrate to facilitate lipid fermentation ...
