Enginyeria Química i Química Analítica: Envíos recientes
Mostrando ítems 61-80 de 790
Kinetics of the liquid phase dehydration of 1-octanol to di-n-octyl ether on Amberlyst 70
The kinetics of the liquid phase dehydration of 1-octanol to di-n-octyl ether (DNOE) over Amberlyst 70 was studied at 413-453K. Mechanistic rate models assuming water and 1-octanol adsorbed on the resin, and the free sites ...
Autenticació de cafès mitjançant mètodes de GC-MS i quimiometria. Aplicació a la detecció i quantificació de mostres de cafè adulterades Coffee authentication using GC-MS and chemometric methods. Application to the detection and quantitation of adulterated coffee samples
En les últimes dècades, tenint en compte la complexitat de la cadena alimentària, l'adulteració dels aliments va en augment i dona lloc a casos de fraus alimentaris. És per això que la determinació de l'autenticitat dels ...
Characterizing a novel hyposialylated erythropoietin by intact glycoprotein and glycan analysis
NeuroEPO plus is a recently developed recombinant human erythropoietin (rhEPO) without erythropoietic activity and shorter plasma half-life due to its low sialic acid content. This novel rhEPO product is under investigation ...
Photocatalytic diphenhydramine degradation under different radiation sources: Kinetic studies and energetic comparison
The degradation of diphenhydramine hydrochloride (DPH)by TiO2photocatalysiswas studied under different radiation sources: UVC, black blue lamps (BLB), simulated solar radiation (SB, Solarbox) and solar radiation (CPCs, ...
Spent espresso coffee grounds as a source of anti-proliferative and antioxidant compounds
Disposal of spent espresso coffee grounds (SCG) is costly and leads to the loss of bioactive compounds that could be fractionated, in several applications. This work aimed to investigate phenolic profile, tocopherols, and ...
Dissolution rates of ciprofloxacin and its cocrystal with resorcinol
The synthesis of cocrystals is presented as an alternative to improve the properties of active pharmaceutical ingredients, especially those related to solubility and dissolution rate. In this work the dissolution rate of ...
Functionalization of Screen-Printed Electrodes with Grape Stalk Waste Extract-Assisted Synthesized Silver and Gold Nanoparticles: Perspectives of electrocatalytically Enhanced Determination of Uranyl Ion and Other Heavy Metals Ions
Recently, nanotechnology and nanoparticles (NPs) such as AgNPs and AuNPs have become important in analytical chemistry due to their great potential to improve the performance of electrochemical sensors. In this work, Ag ...
Off-line SPE LC-LRMS Polyphenolic Fingerprinting and Chemometrics to Classify and Authenticate Spanish Honey
The feasibility of non-targeted off-line SPE LC-LRMS polyphenolic fingerprints to address the classification and authentication of Spanish honey samples based on both botanical origin (blossom- and honeydew-honeys) and ...
Aplicación de la metodologia de aula invertida 'Team Based Learning' en cinco assignaturas en la Facultad de Química a través de un proyecto de aprendizaje reflexivo/experiencial
La metodología de Aula Inversa "Team Based Learing" (TBL) se ha aplicado en 5 asignaturas en la Facultat de Química de la Universitat de Barcelona. El proyecto se ha desarrollado en un entorno reflexivo/experiencial en el ...
Editorial: Biofuels and Bioproducts From Anaerobic Processes: Anaerobic Membrane Bioreactors (AnMBRs)
New biodegradable waste treatment configurations and technologies have arisen to support the transition of treatment plants toward resource recovery facilities. The interest in Anaerobic Membrane Biological Reactor (AnMBR) ...
Exploring metal-organic framework-coated blades for direct and high-throughput screening analysis of complex biological matrices
Ambient ionization mass spectrometry techniques (AIMS) have become an emerging approach over the last years due to their simplicity, permitting high-throughput sample analysis by direct coupling to mass spectrometry while ...
High-resolution mass spectrometry applied to the study of metabolome modifications in various chicken tissues after amoxicillin administration
The performance of high resolution accurate mass spectrometry (HRMS) operating in full scan MS mode was investigated for the quantitative determination of amoxicillin (AMX) as well as qualitative analysis of metabolomic ...
EMQAL: Erasmus Mundus Master in Quality in Analytical Laboratories
The Erasmus Mundus Master in Quality in Analytical Laboratories (EMQAL) is a two-year Joint Master Degree. The course is funded by the European Commission through the Erasmus Mundus Programme, providing a number of attractive ...
Improving ferrate disinfection and decontamination performance at neutral pH by activating peroxymonosulfate under solar light
In this work, the effect of solar light as a 'reducing agent' in Fe(VI)/PMS process for disinfection and decontamination of water was investigated. Single, double and triple-factor disinfection processes were systematically ...
Influence of omega-3 PUFAs on the metabolism of proanthocyanidins in rats
Studies of the bioavailability of proanthocyanidins usually consider them independently of other dietary constituents, while there is a tendency in the field of functional foods towards the combination of different bioactive ...
Ultra-high-performance liquid chromatography-atmospheric pressure ionization-tandem mass spectrometry method for the migration studies of primary aromatic amines from food contact materials
This work describes the development of an ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method for the determination of 23 primary aromatic amines (PAAs) that can potentially migrate ...
Comparison of capillary electrophoresis and zwitterionic-hydrophilic interaction capillary liquid chromatography with ultraviolet and mass spectrometry detection for the analysis of microRNA biomarkers
This study evaluates zwitterionic-hydrophilic interaction capillary liquid chromatography (capZIC-HILIC) and capillary electrophoresis (CE) with ultraviolet (UV) and mass spectrometry (MS) detection for the direct, label-free ...
Voltammetric electronic tongues in food analysis
A critical revision is made on recent applications of voltammetric electronic tongues in the field of food analysis. Relevant works are discussed dealing with the discrimination of food samples of different type, origin, ...
Matrix-Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry Combined with Chemometrics for Protein Profiling and Classification of Boiled and Extruded Quinoa from Conventional and Organic Crops
Quinoa is an Andean crop that stands out as a high-quality protein-rich and gluten-free food. However, its increasing popularity exposes quinoa products to the potential risk of adulteration with cheaper cereals. Consequently, ...
The human mitochondrial transcription factor A is a versatile G-quadruplex binding protein
The ability of the guanine-rich strand of the human mitochondrial DNA (mtDNA) to form G-quadruplex structures (G4s) has been recently highlighted, suggesting potential functions in mtDNA replication initiation and mtDNA ...
