{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,11]],"date-time":"2026-04-11T09:29:47Z","timestamp":1775899787438,"version":"3.50.1"},"reference-count":34,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2017,6,21]],"date-time":"2017-06-21T00:00:00Z","timestamp":1498003200000},"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>A new silver nanoparticle modified screen-printed electrode was developed and applied to the simultaneous determination of Pb(II) and Cu(II). Two different types of silver nanoparticles with different shapes and sizes, Ag nanoseeds and Ag nanoprisms, were microscopically characterized and three different carbon substrates, graphite, graphene and carbon nanofibers, were tested. The best analytical performance was achieved for the combination of Ag nanoseeds with a carbon nanofiber modified screen-printed electrode. The resulting sensor allowed the simultaneous determination of Pb(II) and Cu(II) at trace levels and its applicability to natural samples was successfully tested with a groundwater certified reference material, presenting high reproducibility and trueness.<\/jats:p>","DOI":"10.3390\/s17061458","type":"journal-article","created":{"date-parts":[[2017,6,22]],"date-time":"2017-06-22T02:39:15Z","timestamp":1498099155000},"page":"1458","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":51,"title":["Ag Nanoparticles Drop-Casting Modification of Screen-Printed Electrodes for the Simultaneous Voltammetric Determination of Cu(II) and Pb(II)"],"prefix":"10.3390","volume":"17","author":[{"given":"Clara","family":"P\u00e9rez-R\u00e0fols","sequence":"first","affiliation":[{"name":"Departament d\u2019Enginyeria Qu\u00edmica i Qu\u00edmica Anal\u00edtica, Facultat de Qu\u00edmica, Universitat de Barcelona, Mart\u00ed i Franqu\u00e8s 1-11, 08028 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8939-6253","authenticated-orcid":false,"given":"Julio","family":"Bastos-Arrieta","sequence":"additional","affiliation":[{"name":"Departament d\u2019Enginyeria Qu\u00edmica, Universitat Polit\u00e8cnica de Catalunya (UPC), Campus Diagonal Bes\u00f2s, Edificio I (EEBE), Carrer Eduard Maristany 10-14, 08019 Barcelona, Spain"},{"name":"Barcelona Research Center for Multiscale Science and Engineering, 08019 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5951-1823","authenticated-orcid":false,"given":"N\u00faria","family":"Serrano","sequence":"additional","affiliation":[{"name":"Departament d\u2019Enginyeria Qu\u00edmica i Qu\u00edmica Anal\u00edtica, Facultat de Qu\u00edmica, Universitat de Barcelona, Mart\u00ed i Franqu\u00e8s 1-11, 08028 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8241-3463","authenticated-orcid":false,"given":"Jos\u00e9","family":"D\u00edaz-Cruz","sequence":"additional","affiliation":[{"name":"Departament d\u2019Enginyeria Qu\u00edmica i Qu\u00edmica Anal\u00edtica, Facultat de Qu\u00edmica, Universitat de Barcelona, Mart\u00ed i Franqu\u00e8s 1-11, 08028 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cristina","family":"Ari\u00f1o","sequence":"additional","affiliation":[{"name":"Departament d\u2019Enginyeria Qu\u00edmica i Qu\u00edmica Anal\u00edtica, Facultat de Qu\u00edmica, Universitat de Barcelona, Mart\u00ed i Franqu\u00e8s 1-11, 08028 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joan","family":"De Pablo","sequence":"additional","affiliation":[{"name":"Departament d\u2019Enginyeria Qu\u00edmica, Universitat Polit\u00e8cnica de Catalunya (UPC), Campus Diagonal Bes\u00f2s, Edificio I (EEBE), Carrer Eduard Maristany 10-14, 08019 Barcelona, Spain"},{"name":"Barcelona Research Center for Multiscale Science and Engineering, 08019 Barcelona, Spain"},{"name":"Fundaci\u00f3 CTM Centre Tecnol\u00f2gic, Pla\u00e7a de la Ci\u00e8ncia 2, 08240 Manresa, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Miquel","family":"Esteban","sequence":"additional","affiliation":[{"name":"Departament d\u2019Enginyeria Qu\u00edmica i Qu\u00edmica Anal\u00edtica, Facultat de Qu\u00edmica, Universitat de Barcelona, Mart\u00ed i Franqu\u00e8s 1-11, 08028 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2017,6,21]]},"reference":[{"key":"ref_1","unstructured":"Wang, J. 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