Resultats globals: 18 registres trobats en 0.02 segons.
Articles, 17 registres trobats
Documents de recerca, 1 registres trobats
Articles 17 registres trobats  1 - 10següent  anar al registre:
1.
21 p, 813.9 KB Electronic tongue for nitro and peroxide explosive sensing / González-Calabuig, Andreu (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)
This work reports the application of a voltammetric electronic tongue (ET) towards the simultaneous determination of both nitro-containing and peroxide-based explosive compounds, two families that represent the vast majority of compounds employed either in commercial mixtures or in improvised explosive devices. [...]
2016 - 10.1016/j.talanta.2016.03.009
Talanta, Vol. 153 (June 2016) , p. 340-346  
2.
10 p, 3.5 MB Resolution of opiate illicit drugs signals in the presence of some cutting agents with use of a voltammetric sensor array and machine learning strategies / Ortiz, Dionisia (Universitat Autònoma de Barcelona. Departament de Química) ; Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Departament de Química) ; De Wael, Karolien (University of Antwerp. Department of Bioscience Engineering) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
In the present work, the resolution and quantification of mixtures of different opiates compounds in the presence of common cutting agents using an electronic tongue (ET) is evaluated. More specifically, ternary mixtures of heroin, morphine and codeine were resolved in the presence of caffeine and paracetamol. [...]
2021 - 10.1016/j.snb.2021.131345
Sensors and actuators. B, Chemical, Vol. 357 (April 2022) , art. 131345  
3.
9 p, 6.6 MB A novel electronic tongue using electropolymerized molecularly imprinted polymers for the simultaneous determination of active pharmaceutical ingredients / Wang, Mingyue (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)
The combination of chemometrics and electrochemical sensors modified with molecularly imprinted polymers (MIPs) towards the development of MIP-based electronic tongues (ETs) was explored herein. To demonstrate the potential of such an approach, the simultaneous determination of paracetamol, ascorbic acid and uric acid mixtures in pharmaceutical samples was evaluated. [...]
2022 - 10.1016/j.bios.2021.113807
Biosensors and bioelectronics, Vol. 198 (February 2022) , art. 113807  
4.
15 p, 7.0 MB Optimization of Sensors to be Used in a Voltammetric Electronic Tongue Based on Clustering Metrics / Sarma, Munmi (Universitat Autònoma de Barcelona. Departament de Química) ; Romero, Noelia (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)
Herein we investigate the usage of principal component analysis (PCA) and canonical variate analysis (CVA), in combination with the F factor clustering metric, for the a priori tailored selection of the optimal sensor array for a given electronic tongue (ET) application. [...]
2020 - 10.3390/s20174798
Sensors (Basel, Switzerland), Vol. 20, Issue 17 (September 2020) , art. 4798  
5.
11 p, 2.1 MB A voltammetric electronic tongue for the resolution of ternary nitrophenol mixtures / González-Calabuig, Andreu (Universitat Autònoma de Barcelona. Departament de Química) ; Cetó Alsedà, Xavier (University of South Australia) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
This work reports the applicability of a voltammetric sensor array able to quantify the content of 2,4-dinitrophenol, 4-nitrophenol, and picric acid in artificial samples using the electronic tongue (ET) principles. [...]
2018 - 10.3390/s18010216
Sensors (Basel, Switzerland), Vol. 18, Issue 1 (January 2018) , art. 216  
6.
24 p, 510.7 KB Beer classification by means of a potentiometric electronic tongue / Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Grup de Recerca de Sensors i Biosensors) ; Gutiérrez-Capitán, Manuel (Universitat Autònoma de Barcelona. Grup de Recerca de Sensors i Biosensors) ; Calvo Boluda, Daniel (Universitat Autònoma de Barcelona. Grup de Recerca de Sensors i Biosensors) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
In this work, an Electronic Tongue (ET) system based on an array of potentiometric ion-selective electrodes (ISEs) is presented for the discrimination of different commercial beer types is presented. [...]
2013 - 10.1016/j.foodchem.2013.05.091
Food chemistry, Vol. 141, Issue 3 (2013) , p. 2533-2540  
7.
29 p, 751.9 KB Application of an electronic tongue towards the analysis of brandies / Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Grup de Recerca de Sensors i Biosensors) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
This work reports the application of a voltammetric Electronic Tongue (ET) in the analysis of brandies, specifically in its classification according to the scores given by a skilled sensory panel and in the discrimination of different ageing methods. [...]
2013 - 10.1039/c2ay26066b
Analytical methods, Vol. 5, Issue 5 (March 2013) , p. 1120-1129  
8.
28 p, 458.7 KB Hybrid Electronic Tongue based on Multisensor Data Fusion for Discrimination of Beers / Gutiérrez, Juan Manuel (CINVESTAV. Mexico.) ; Haddi, Zouhair (Moulay Ismaïl University) ; Amari, Aziz (Moulay Ismaïl University) ; Bouchikhi, Benachir (Moulay Ismaïl University) ; Mimendia, Aitor (Universitat Autònoma de Barcelona. Grup de Recerca de Sensors i Biosensors) ; Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Grup de Recerca de Sensors i Biosensors) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
This paper reports the use of a hybrid Electronic Tongue based on data fusion of two different sensor families, applied in the recognition of beer types. Six modifiedgraphite- epoxy voltammetric sensors plus 15 potentiometric sensors formed the sensor array. [...]
2013 - 10.1016/j.snb.2012.11.110
Sensors and actuators. B, Chemical, Vol. 177 (February 2013) , p. 989-996  
9.
19 p, 1.1 MB Rapid field identification of subjects involved in firearm-related crimes based on electroanalysis coupled with advanced chemometric data treatment / Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Grup de Recerca de Sensors i Biosensors) ; O'Mahony, Aoife M. (University of California. Department of Nanoengineering) ; Samek, Izabela A. (University of California. Department of Nanoengineering) ; Windmiller, Joshua R. (University of California. Department of Nanoengineering) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química) ; Wang, Joseph (University of California. Department of Nanoengineering)
We demonstrate a novel system for the detection and discrimination of varying levels of exposure to gunshot residue from subjects in various control scenarios. Our aim is to address the key challenge of minimizing the false positive identification of individuals suspected of discharging a firearm. [...]
2012 - 10.1021/ac302361z
Analytical chemistry, Vol. 84, Issue 23 (Dec 2012) , p. 10306-10314  
10.
28 p, 2.1 MB Determination of total polyphenol index in wines employing a voltammetric electronic tongue / Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Grup de Recerca de Sensors i Biosensors) ; Gutiérrez, Juan Manuel (Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional. Department of Electrical Engineering) ; Gutiérrez-Capitán, Manuel (Institut de Microelectrònica de Barcelona) ; Céspedes Mulero, Francisco (Universitat Autònoma de Barcelona. Grup de Recerca de Sensors i Biosensors) ; Capdevila, Josefina (Institut Català de la Vinya i el Vi) ; Minguez, Santiago (Institut Català de la Vinya i el Vi) ; Jiménez Jorquera, Cecília (Institut de Microelectrònica de Barcelona) ; Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
This work reports the application of a voltammetric electronic tongue system (ET) made from an array of modified graphite-epoxy composites plus a gold microelectrode in the qualitative and quantitative analysis of polyphenols found in wine. [...]
2012 - 10.1016/j.aca.2012.02.026
Analytica chimica acta, Vol. 732 (Jun 2012) , p. 172-179  

Articles : 17 registres trobats   1 - 10següent  anar al registre:
Documents de recerca 1 registres trobats  
1.
380 p, 7.9 MB Llengües (bio)electròniques aplicades a l'anàlisi i caracterització de begudes / Cetó Alsedà, Xavier ; Valle Zafra, Manuel del, dir. (Universitat Autònoma de Barcelona. Departament de Química) ; Céspedes Mulero, Francisco, dir. (Universitat Autònoma de Barcelona. Departament de Química) ; Universitat Autònoma de Barcelona. Departament de Química
En els darrers anys, s'ha observat una creixent demanda de nous mètodes analítics capaços d'oferir el màxim de informació analítica amb el mínim "esforç" possible, els quals són necessaris per tal d'assolir els nous reptes en camps tals com el monitoratge ambiental, la seguretat alimentària i la salut pública. [...]
Over the last years, there has been an increasing demand of new analytical methods with the high sensitivity and selectivity, and fast response needed to meet new challenges in environmental monitoring, food safety and public health. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2014  

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