Enginyeria Química i Química Analítica: Envíos recientes
Mostrando ítems 41-60 de 790
Voltammetric determination of salbutamol, sulfamethoxazole, and trimethoprim as anthropogenic impact indicators using commercial screen-printed electrodes
A voltammetric method based on the use of screen-printed carbon electrodes (SPCEs) is presented for the simultaneous determination of salbutamol (SAL), sulfamethoxazole (SMX), and trimethoprim (TMP), with high sensitivity, ...
From Waste to Resource: Exploring Green Approaches forPhenolics Recovery from Olive Leaves
Waste management presents a significant challenge for agri-food industries, but also an opportunity to recover valuable bioactive compounds, particularly phenolics, aligning with circular economy principles. This study ...
Hydration of cyclohexene to cyclohexanol in a hybrid reactive distillation with a side decanter
Nowadays, more than 1 Mt of cyclohexanol is produced each year by the direct hydration of cyclohexene according to the patented Asahi process proposed in 1990. The Asahi process involves a reactor and a separation system ...
Molecular interactions between warfarin and human (HSA) or bovine(BSA) serum albumin evaluated by isothermal titration calorimetry(ITC), fluorescence spectrometry (FS) and frontal analysis capillaryelectrophoresis (FA/CE)
Interaction thermodynamics between warfarin, a very popular anticoagulant, and Sudlow I binding siteof human (HSA) or bovine (BSA) serum albumin have been examined in strictly controlled experimentalconditions (HEPES buffer ...
Recovery of rare earth elements from acidic mine waters by integration of a selective chelating ion-exchanger and a solvent impregnated resin
A polymeric ion-exchange resin, incorporating methyl-amino-phosphonic (TP260) functionalities, and a solvent impregnated resin (SIR) incorporating tri-methylpentylphosphinic acid (TP272), were evaluated for the selective ...
Una planificación innovadora y nuevos instrumentos de evaluación para la mejora del aprendizaje en un laboratorio de prácticas de Química Analítica básica
Este trabajo presenta las acciones realizadas para la mejora del aprendizaje en el laboratorio de prácticas de una asignatura de Química Analítica Básica, como es la Química Analítica del Grado de Farmacia de la Universidad ...
An overview of the extraction and chromatographic characterization of bioactive phenolic compounds from agri-food residues waste within the framework of circular bioeconomy
The recycling and revalorization of wastes from the agri-food industry (AFI) have emerged in the scientific scenario as a multidisciplinary working field in the framework of the circular bioeconomy. Residues and side ...
A need for determination of arsenic species at low levels in cereal-based food and infant cereals. Validation of a method by LC-ICPMS.
The present study arose from the need to determine inorganic arsenic (iAs) at low levels in cereal-based food. Validated methods with a low limit of detection (LOD) are required to analyse these kinds of food. An analytical ...
Implementación del aprendizaje basado en proyectos en laboratorios de Química Analítica del grado de Química
The project-based learning methodological strategy (PBL) has been implemented in analytical chemistry laboratories, specifically in the subject of Basic Laboratory of Analytical Chemistry of the Chemistry Degree, with the ...
Microneedle based electrochemical (bio)sensing: towards decentralized and continuous health status monitoring
Microneedle (MN) based electrochemical (bio)sensing has become a growing field within the discipline of analytical chemistry as a result of its unique capacity for continuous, decentralized health status monitoring. There ...
Deriving probabilistic soil distribution coefficients (Kd). Part 3: Reducing variability of americium Kd best estimates using soil properties and chemical and geological material analogues
The solid-liquid distribution coefficient (Kd) is a key input parameter in radioecological risk models. However, its large variability hampers its usefulness in modelling transport processes as well as its accuracy in ...
Solubilization of decane into gemini surfactant with a modified Jeffamine backbone: Design of hierarchical porous silica
Herein, we have investigated the solubilization of decane into a novel nonionic gemini surfactant, myristoyl-end capped Jeffamine, synthesized from a polyoxyalkyleneamine (ED900). Starting from this system, porous silica ...
Separation of tripeptides in binary mixtures using ion-exchange membrane adsorber
The adsorption of three tripeptides in an ion-exchange membrane adsorber was analyzed in single and binary solutions, with the aim of evaluating the capability of the membrane adsorber to separate triglycine (GGG) from two ...
Exploring ozonation as treatment alternative for methiocarb and formed transformation products abatement
Despite the high toxicity and resistance to conventional water treatments exhibited by methiocarb (MC), there are no reports regarding the degradation of this priority pesticide by means of alternative purification ...
Exploring the antioxidant features of polyphenols by spectroscopic and electrochemical methods
This paper evaluates the antioxidant ability of polyphenols as a function of their chemical structures. Several common food indexes including Folin-Ciocalteau (FC), ferric reducing antioxidant power (FRAP) and trolox ...
Liquid chromatography-tandem mass spectrometry for the determination of multiple mycotoxins in serum through suspect screening and targeted approaches: advancing human mycotoxin biomonitoring
Human biomonitoring (HBM) is accepted as an effective way to assess human exposure to mycotoxins and to investigate their impact on human health. Ultra-high performance liquid chromatography-tandem mass spectrometry ...
Oenological processes and product qualities in the elaboration of sparkling wines determine the biogenic amine content
The biogenic amine (BA) content in wines is dependent on the fermentation processes and other oenological practices, as well as on grape quality. These compounds can participate in different cellular functions in humans; ...
Aprendizaje basado en estrategias de clase inversa en la asignatura de Química Analítica.
Este trabajo plantea el desarrollo e implementación de diferentes estrategias de clase inversa basadas en herramientas web 2.0 en la asignatura de Química Analítica de los Grados de Química, Farmacia e Ingeniería Química ...
Microwave-assisted extraction with natural deep eutectic solvents for polyphenol recovery from agrifood waste: Mature for scaling-up?
Agrifood industries generate large amounts of waste that may result in remarkable environmental problems, such as soil and water contamination. Therefore, proper waste management and treatment have become an environmental, ...
Equilibrium of the simultaneous etherification ofisobutene and isoamylenes with ethanol inliquid-phase
The simultaneous etherification of isobutene and isoamylenes with ethanol has been studied using macroreticu-lar acid ion-exchange resins as catalyst. Most of the experiments were carried out over Amberlyst-35. In ...
