Examinar por departamento (cas.) "Química analítica"
Now showing items 41-60 of 300
-
Bio-based hybrid nanocomposites as multifunctional sustainable materials for stone conservation
(Elsevier, 2023-08-23)This study was aimed at developing a sustainable versatile bio-based epoxy-silica material to be potentially employed as hydrophobic and biocidal consolidating product in the field of stone conservation. For this purpose, ... -
Bioanalytical chromatographic method validation according to current regulations, with a special focus on the non-well defined parameters limit of quantification, robustness and matrix effect
(Elsevier, 2014-08-01)Method validation is a mandatory step in bioanalysis, to evaluate the ability of developed methods in providing reliable results for their routine application. Even if some organisations have developed guidelines to define ... -
Biochemical and Metabolomic Changes after Electromagnetic Hyperthermia Exposure to Treat Colorectal Cancer Liver Implants in Rats
(MDPI, 2021-05-17)Background: Hyperthermia (HT) therapy still remains relatively unknown, in terms of both its biological and therapeutic effects. This work aims to analyze the effects of exposure to HT, such as that required in anti-tumor ... -
Biostimulants as an Alternative to Improve the Wine Quality from Vitis vinifera (cv. Tempranillo) in La Rioja
(MDPI, 2022)The application of biostimulants appears to be an environmentally friendly, innovative, and sustainable agronomical tool to mitigate the negative effects induced by adverse climatology in traditional grape-growing regions ... -
Bread fermentation monitoring through NIR spectroscopy and PLS-DA. Determining the optimal fermentation point in bread doughs
(Elsevier, 2024-01)Dough fermentation is a fundamental step in bread manufacturing, commonly supervised by bakery experts. This work aims to develop an efficient technology based on near infrared spectroscopy (NIR) and partial least ... -
Cannabis use selectively modulates circulating biomarkers in the blood of schizophrenia patients
(Wiley, 2022-11)Cannabis use disorder is frequent in schizophrenia patients, and it is associated with an earlier age of onset and poor schizophrenia prognosis. Serotonin 2A receptors (5-HT2AR) have been involved in psychosis and, like ... -
Caracterización biogénica e identificación de prácticas pastoriles mediante el análisis de biomarcadores en sedimentos orgánicos prehistóricos procedentes de abrigos refugio y cuevas redil
(2020-09-15)En la presente Tesis Doctoral se ha incidido especialmente en establecer la naturaleza de los animales estabulados a lo largo del tiempo, en abrigos de ontaña de la Sierra de Cantabria y la Sierra de Atapuerca, certificados ... -
Caracterización de extractantes industriales basados en hidroxioximas. Aplicación a la recuperación de metales de residuos
(2015-11-06)Se ha determinado la composición de distintos extractantes basados en hidroxioximas y fabricados a partir de nonilfenol, que son utilizados industrialmente para la recuperación de metales. En primer lugar, y mediante GC-MS ... -
Caracterización multi-analítica del material volcánico de Pompeya y su empleo en nuevos morteros para la conservación del patrimonio construido
(Euskal Herriko Ubibertsitatea/Universidad del País Vasco, 2020-01)El paisaje ha cobrado mayor importancia en los últimos años, claro ejemplo son las numerosas convenciones y congresos que se realizan al respecto, con el objetivo primario de conservar y preservar los elementos que lo ... -
Characterization of the contamination fingerprint of wastewater treatment plant effluents in the Henares River Basin (central Spain) based on target and suspect screening analysis
(Elsevier, 2022-02-01)The interest in contaminants of emerging concern (CECs) has increased lately due to their continued emission and potential ecotoxicological hazards. Wastewater treatment plants (WWTPs) are generally not capable of eliminating ... -
Chemometrics and elemental mapping by portable LIBS to identify the impact of volcanogenic and non-volcanogenic degradation sources on the mural paintings of Pompeii
(Elsevier, 2021-05-03)Crystallization of soluble salts is a common degradation phenomenon that threatens the mural paintings of Pompeii. There are many elements that contribute to the crystallization of salts on the walls of this archaeological ... -
Chitosan-Coated Alginate Microcapsules of a Full-Spectrum Cannabis Extract: Characterization, Long-Term Stability and In Vitro Bioaccessibility
(MDPI, 2023-03-07)Cannabinoids present in Cannabis sativa are increasingly used in medicine due to their therapeutic potential. Moreover, the synergistic interaction between different cannabinoids and other plant constituents has led to the ... -
Classification of archaeological pieces into their respective stratum by a chemometric model based on the soil concentration of 25 selected elements
(Elsevier, 2010-04-01)The aim of this work was to demonstrate that an archaeological ceramic piece has remained buried underground in the same stratum for centuries without being removed. For this purpose, a chemometric model based on Principal ... -
Combined in situ XRF–LIBS analyses as a novel method to determine the provenance of central Mediterranean obsidians
(Springer Nature, 2023)This work presents a new calibration method for determining the provenance of obsidian artefacts based on the combined use of XRF and laser-induced breakdown spectroscopy (LIBS). At first, obsidian samples collected from ... -
Comparison of Aquitaine and Rioja red wines: characterization of their phenolic composition and evolution from 2000 to 2013
(MDPI, 2017-01-24)Wine chemical analysis was carried out on 194 commercial blended red wines produced by two major wine-growing areasthe Aquitaine (France) and Rioja (Spain) regionsin order to compare the wines of both regions. Anthocyanins ... -
Comparison of conventional and dispersive solid phase extraction clean-up approaches for the simultaneous analysis of tetracyclines and sulfonamides in a variety of fresh vegetables
(Elsevier, 2023-03)he extensive use of antibiotics in agriculture has led to the occurrence of residual drugs in different vegetables frequently consumed by humans. This could pose a potential threat to human health, not only because of the ... -
Comparison of liver and plasma metabolic profiles in piglets of different ages as animal models for paediatric population
(RSC, 2020-08-13)Liver plays an important role in drug metabolism, so studying the grade of maturation of this organ would help to develop more appropriate dosing regimens for paediatric populations. Nevertheless, considering the invasive ... -
Compositionally and density stratified igneous terrain in Jezero crater, Mars
(American Association for the Advancement of Science, 2022)Before Perseverance, Jezero crater's floor was variably hypothesized to have a lacustrine, lava, volcanic airfall, or aeolian origin. SuperCam observations in the first 286 Mars days on Mars revealed a volcanic and intrusive ... -
Comprehensive characterisation of polyphenols in leaves and stems of three anti‐dengue virus type‐2 active Brazilian Faramea species (Rubiaceae) by HPLC‐DAD‐ESI‐MS/MS
(Wiley, 2018-09-07)A comprehensive characterization of polyphenols by online high-performance liquid chromatography with diode array detection coupled to electrospray ionization and triple quadrupole mass spectrometry (HPLC-DAD-ESI-CID-MS/MS) ... -
Comprehensive micropollutant characterization of wastewater during Covid-19 crisis in 2020: Suspect screening and environmental risk prioritization strategy
(Elsevier, 2023-05)Micropollutants monitoring in wastewater can serve as a picture of what is consuming society and how it can impact the aquatic environment. In this work, a suspect screening approach was used to detect the known and unknown ...