{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T01:37:26Z","timestamp":1760060246104,"version":"build-2065373602"},"reference-count":49,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2025,8,13]],"date-time":"2025-08-13T00:00:00Z","timestamp":1755043200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ministerio de Ciencia e Innovaci\u00f3n, Spain","award":["PID2022-136568NB-I00"],"award-info":[{"award-number":["PID2022-136568NB-I00"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Chemosensors"],"abstract":"<jats:p>This study investigates the potential of transient potentiometric signals generated by an array of ion-selective electrodes (ISEs) as the basis for a potentiometric electronic tongue capable of identifying and quantifying a range of inorganic and organic cations. Six distinct polymeric membrane ISEs were fabricated, differing in plasticizer type (either NPOE or DEHS), and in the presence or absence of a lipophilic ion exchanger (KTClPB) and\/or an ionophore (DB18C6). Transient potential responses were recorded following the exposure of the electrode array to various cations at different concentrations. A total of 810 transient signals were analyzed through visual inspection and principal component analysis (PCA), revealing characteristic dynamic patterns influenced by membrane composition, ion type, and ion concentration. PCA was conducted both on the transient signals from each individual electrode and on the aggregated dataset comprising signals from the full six-electrode array (electronic tongue). The electronic tongue exhibited a markedly enhanced capacity for discriminating and quantifying ion concentrations in comparison to any single electrode.<\/jats:p>","DOI":"10.3390\/chemosensors13080305","type":"journal-article","created":{"date-parts":[[2025,8,13]],"date-time":"2025-08-13T13:30:38Z","timestamp":1755091838000},"page":"305","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Principal Component Analysis of Transient Potential Signals from Ion-Selective Electrodes for the Identification and Quantification of Different Ions"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1637-3883","authenticated-orcid":false,"given":"Jos\u00e9 Antonio","family":"Gonz\u00e1lez-Franco","sequence":"first","affiliation":[{"name":"Department of Chemical Engineering, University of Murcia, 30100 Murcia, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8611-8397","authenticated-orcid":false,"given":"Jos\u00e9 Manuel","family":"Olmos","sequence":"additional","affiliation":[{"name":"Department of Analytical Chemistry, University of Murcia, 30100 Murcia, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9107-1952","authenticated-orcid":false,"given":"Alberto","family":"Ruiz","sequence":"additional","affiliation":[{"name":"Department of Informatics and Systems, University of Murcia, 30100 Murcia, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2980-7652","authenticated-orcid":false,"given":"Joaqu\u00edn \u00c1ngel","family":"Ortu\u00f1o","sequence":"additional","affiliation":[{"name":"Department of Analytical Chemistry, University of Murcia, 30100 Murcia, Spain"}]}],"member":"1968","published-online":{"date-parts":[[2025,8,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"395","DOI":"10.1016\/S0376-7388(00)83316-5","article-title":"Ion Transport in Free and Supported Nitrobenzene Aliquat Nitrate Liquid Membrane Ion-Selective Electrodes","volume":"4","author":"Mathis","year":"1978","journal-title":"J. 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