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Depósito Digital de Documentos de la UAB Encontrados 40 registros  1 - 10siguientefinal  ir al registro: La búsqueda tardó 0.02 segundos. 
1.
6 p, 2.4 MB Analysis of spices & herbs and its phenolic content by means of an electronic tongue / Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Departament de Química) ; Sarma, Munmi (Universitat Autònoma de Barcelona. Departament de Química) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
The drying process to which herbs and spices are submitted has a significant impact on the flavour and quality of those as many compounds might be degraded or transformed. This is especially relevant for most aromatic and bioactive compounds (e. [...]
2024 - 10.1016/j.lwt.2023.115578
LWT, Vol. 191 (January 2024) , art. 115578  
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2.
8 p, 1.3 MB Fundamentals and application of voltammetric electronic tongues in quantitative analysis / Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Departament de Química) ; Pérez, Sandra (Centro Nacional de Microelectrónica) ; Prieto-Simón, Beatriz (Universitat Rovira i Virgili. Departament d'Enginyeria Electrònica, Elèctrica i Automàtica)
Electronic tongues (ETs) are bioinspired analytical tools based on the synergies between (bio)sensors and chemometrics. Through the application of chemometrics, it is possible to infer underlying relationships between the measured analytical signals and the chemical properties of the samples, both for descriptive and predictive purposes, otherwise impossible to decipher. [...]
2022 - 10.1016/j.trac.2022.116765
Trends in analytical chemistry, Vol. 157 (December 2022) , art. 116765  
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3.
16 p, 527.5 KB Voltammetric BioElectronic Tongue for the analysis of phenolic compounds in rosé cava wines / Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Departament de Química) ; Capdevila Mestres, Josefa (Estació de Viticultura i Enologia, INCAVI) ; Mínguez, Santiago (Estació de Viticultura i Enologia, INCAVI) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
A BioElectronic Tongue (BioET) based on a sensor array comprising 4 voltammetric enzyme-modified (bio)sensors plus pattern recognition and multivariate calibration data processing tools was applied towards the analysis of rosé cava wines. [...]
2014 - 10.1016/j.foodres.2013.11.025
Food Research International, Vol. 55 (January 2014) , p. 455-461  
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4.
15 p, 1.5 MB Voltammetric electronic tongue to identify Brett character in wines. On-site quantification of its ethylphenol metabolites / González-Calabuig, Andreu (Universitat Autònoma de Barcelona. Departament de Química) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
This work reports the applicability of a voltammetric sensor array able to evaluate the content of the metabolites of the Brett defect: 4-ethylphenol, 4-ethylguaiacol and 4-ethylcatechol in spiked wine samples using the electronic tongue (ET) principles. [...]
2018 - 10.1016/j.talanta.2017.10.041
Talanta, Vol. 179 (March 2018) , p. 70-74  
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5.
21 p, 538.2 KB Development and application of an electronic tongue for detection and monitoring of nitrate, nitrite and ammonium levels in waters / Nuñez, L. (Universidade Estadual Paulista. Instituto de Química. Departamento de Química Analítica (Brazil)) ; Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Departament de Química) ; Pividori, María Isabel (Universitat Autònoma de Barcelona. Departament de Química) ; Zanoni, Maria Valnice (Universidade Estadual Paulista. Instituto de Química. Departamento de Química Analítica (Brazil)) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
This work presents the first study and development of an electronic tongue analysis system for the monitoring of nitrogen stable species: nitrate, nitrite and ammonium in water. The electronic tongue was composed of an array of 15 potentiometric poly(vinyl chloride) membrane sensors sensitive to cations and anions plus an artificial neural network (ANN) response model. [...]
2013 - 10.1016/j.microc.2013.04.018
Microchemical Journal, Vol. 110 (September 2013) , p. 273-279  
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6.
7 p, 422.6 KB Experiences in the detection of drugs of abuse in smuggling seizures and forensic samples using electronic tongue principles / Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Departament de Química) ; Bonet-SanEmeterio, Marta (Universitat Autònoma de Barcelona. Departament de Química) ; Ortiz, Dionisia (Universitat Autònoma de Barcelona. Departament de Química) ; Rodriguez-Franch, E. (Universitat Autònoma de Barcelona. Departament de Química) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
The application of voltammetric sensors to the analysis of illicit drugs in combination with different chemometric tools to achieve their identification and quantification is explored herein. The aim is to process the whole voltammograms obtained from different sensors as a unique profile, and analyze those with the aid of pattern recognition methods that allow the extraction of a characteristic fingerprint, rather than focusing on the oxidation peaks associated to each of the drugs. [...]
IEEE, 2022 - 10.1109/ISOEN54820.2022.9789611
2022 IEEE International Symposium on Olfaction and Electronic Nose (ISOEN), 2022, p. 1-4  
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7.
21 p, 861.4 KB Evaluation of red wines antioxidant capacity by means of a voltammetric e-tongue with an optimized sensor array / Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Departament de Química) ; Apetrei, Constantin (Universitatea Dunărea de Jos. Departamentul de Chimie, Fizică și Mediu) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química) ; Rodríguez-Méndez, Maria Luz (Universidad de Valladolid. Departamento de Química Inorgánica)
In this work, two sets of voltammetric sensors -prepared using different strategies- have been combined in an electronic tongue to evaluate the complete antioxidant profile of red wines. To this aim, wine samples were analyzed with the whole set of sensors. [...]
2014 - 10.1016/j.electacta.2013.12.079
Electrochimica acta, Vol. 120 (Feb. 2014) , p. 180-186  
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8.
29 p, 618.9 KB Electronic tongues to assess wine sensory descriptors / Cetó Alsedà, Xavier (University of South Australia. Future Industries Institute) ; González-Calabuig, Andreu (Universitat Autònoma de Barcelona. Departament de Química) ; Crespo, Nora (Universitat Autònoma de Barcelona. Departament de Química) ; Pérez, Sandra (Universitat Autònoma de Barcelona. Departament de Química) ; Capdevila Mestres, Josefa (INCAVI-IRTA. Estació de Viticultura i Enologia) ; Puig-Pujol, Anna (INCAVI-IRTA. Estació de Viticultura i Enologia) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
This work reports the application of an electronic tongue as a tool towards the analysis of wine in tasks such as its discrimination based on the maturing in barrels or the prediction of the global scores assigned by a sensory panel. [...]
2017 - 10.1016/j.talanta.2016.09.055
Talanta, Vol. 162 (January 2017) , p. 218-224  
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9.
25 p, 1.0 MB Bioelectronic tongue using MIP sensors for the resolution of volatile phenolic compounds / Herrera-Chacon, Anna (Universitat Autònoma de Barcelona. Departament de Química) ; González-Calabuig, Andreu (Universitat Autònoma de Barcelona. Departament de Química) ; Campos, Inmaculada (Universitat Autònoma de Barcelona. Departament de Química) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
The proposed approach reports the combined advantages of biosensors made of molecularly imprinted polymers (MIPs) and the modelling capabilities of Artificial Neural Networks (ANN) in a bio-electronic tongue (BioET) analysis system for the very first time. [...]
2018 - 10.1016/j.snb.2017.11.136
Sensors and actuators. B, Chemical, Vol. 258 (April 2018) , p. 665-671  
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10.
16 p, 4.8 MB Quantitative Estimation of COD Values from an Array of Metal Nanoparticle Modified Electrodes and Artificial Neural Networks † / Wang, Qing (Universitat Autònoma de Barcelona. Departament de Química) ; Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Departament de Química) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
Water quality monitoring has become critical in modern societies in multiple areas and at different stages. In this regard, chemical oxygen demand (COD) has become a key index in water testing, as it readily allows the determination of its overall quality and the presence of organic contaminants. [...]
2022 - 10.3390/chemosensors10120504
Chemosensors, Vol. 10, Issue 12 (December 2022) , art. 504  
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Depósito Digital de Documentos de la UAB : Encontrados 40 registros   1 - 10siguientefinal  ir al registro:
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