{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T13:13:34Z","timestamp":1780406014708,"version":"3.54.1"},"reference-count":35,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2019,3,23]],"date-time":"2019-03-23T00:00:00Z","timestamp":1553299200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The standards that establish water\u2019s quality criteria for human consumption include organoleptic analysis. These analyses are performed by taste panels that are not available to all water supply companies with the required frequency. In this work, we propose the use of an electronic tongue to perform organoleptic tests in drinking water. The aim is to automate the whole process of these tests, making them more economical, simple, and accessible. The system is composed by an array of electrochemical microsensors and chemometric tools for multivariable processing to extract the useful chemical information. The array of sensors is composed of six Ion-Sensitive Field Effect Transistors (ISFET)-based sensors, one conductivity sensor, one redox potential sensor, and two amperometric electrodes, one gold microelectrode for chlorine detection, and one nanocomposite planar electrode for sensing electrochemical oxygen demand. A previous study addressed to classify water samples according to taste\/smell descriptors (sweet, acidic, salty, bitter, medicinal, chlorinous, mouldy, and earthy) was performed. A second study comparing the results of two organoleptic tests (hedonic evaluation and ranking test) with the electronic tongue, using Partial Least Squares regression, was conducted. The results show that the proposed electronic tongue is capable of analyzing water samples according to their organoleptic characteristics, which can be used as an alternative method to the taste panel.<\/jats:p>","DOI":"10.3390\/s19061435","type":"journal-article","created":{"date-parts":[[2019,3,25]],"date-time":"2019-03-25T06:56:52Z","timestamp":1553497012000},"page":"1435","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["Organoleptic Analysis of Drinking Water Using an Electronic Tongue Based on Electrochemical Microsensors"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7347-1765","authenticated-orcid":false,"given":"Manuel","family":"Guti\u00e9rrez-Capit\u00e1n","sequence":"first","affiliation":[{"name":"Instituto de Microelectr\u00f3nica de Barcelona (IMB-CNM), CSIC. Campus de la UAB, 08193 Bellaterra, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marta","family":"Brull-Fontser\u00e8","sequence":"additional","affiliation":[{"name":"Mina P\u00fablica d\u2019Aig\u00fces de Terrassa, S.A. C\/de la Societat, 26, 08221 Terrassa, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cecilia","family":"Jim\u00e9nez-Jorquera","sequence":"additional","affiliation":[{"name":"Instituto de Microelectr\u00f3nica de Barcelona (IMB-CNM), CSIC. Campus de la UAB, 08193 Bellaterra, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,3,23]]},"reference":[{"key":"ref_1","unstructured":"European Union (1998). Council Directive 98\/83\/EC of 3 November 1998 on the quality of water intended for human consumption. Official Journal of the European Communities, EU. 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