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oai:riubu.ubu.es:10259/53472022-04-08T10:31:37Zcom_10259_4376com_10259_5086com_10259_2604col_10259_4377

Cunha Silva, Hugo 1 500 Arcos Martínez, Julia 36 500 0000-0002-4932-6445 2020-06-18T08:19:40Z 2020-06-18T08:19:40Z 2019-04 0039-9140 http://hdl.handle.net/10259/5347 10.1016/j.talanta.2018.12.008 A new and selective voltammetric method for chloride determination is proposed, based on platinum and chloride interactions. A screen-printed platinum electrode (SPPtE) functions as a sensing platform, which promotes the formation of chloro-adsorbed species on the electrode surface, acting as an effective means of anion-determination in several matrices. The pretreatment of the SPPtE and careful control of the cathodic stripping voltammetric parameters yielded a well-defined electrochemical signal. This cathodic peak was due to the adsorption of chlorine, which had previously been oxidized from chloride anions in the initial anodic deposition step. It offers a simple, low-cost, fast, reproducible (RSD < 6%) and precise method for selective chloride determination, with limit of detection of 0.76 mM, and a sensitivity of − 24.147 µA mM −1 for a broad determination range of up to 150 mM. Chloride determination was correctly performed with single drops of environmental, pharmaceutical and food samples. In addition, the sensor was successfully adapted as a flexible screen-printed platinum electrode sensor using Gore-Tex® as support for printing. Spanish Ministry of Science and Innovation (MICINN), Ministry of Economy and Competitiveness (MINECO) and the European Regional Development Fund (FEDER) (TEC20013-40561-P and MUSSEL RTC-2015-4077-2). Hugo Cunha-Silva would like to acknowledge funding from the Spanish Ministry of Economy (BES-2014-068214). application/pdf eng Elsevier Talanta. 2019, V. 195, p. 771-777 https://doi.org/10.1016/j.talanta.2018.12.008 info:eu-repo/grantAgreement/MICINN/TEC20013-40561-P info:eu-repo/grantAgreement/MINECO/MUSSEL RTC-2015-4077-2 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Chloride Platinum electrode surface Cathodic stripping voltammetry Screen-printed electrode Flexible sensor Química analítica Chemistry, Analytic Development of a selective chloride sensing platform using a screen-printed platinum electrode info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Talanta 195 771 777 TEXT Cunha-talanta_2019.pdf.txt Cunha-talanta_2019.pdf.txt Extracted text text/plain 50445 https://riubu.ubu.es/bitstream/10259/5347/5/Cunha-talanta_2019.pdf.txt fc4ad9c77cdd649370d1c972bc106b6c MD5 5 THUMBNAIL Cunha-talanta_2019.pdf.jpg Cunha-talanta_2019.pdf.jpg IM Thumbnail image/jpeg 4122 https://riubu.ubu.es/bitstream/10259/5347/4/Cunha-talanta_2019.pdf.jpg 066fd87b81da0e34d469d72196044100 MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 998 https://riubu.ubu.es/bitstream/10259/5347/3/license.txt aa90105e1c90a1b4fe810649aa967b7d MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 805 https://riubu.ubu.es/bitstream/10259/5347/2/license_rdf 4460e5956bc1d1639be9ae6146a50347 MD5 2 ORIGINAL Cunha-talanta_2019.pdf Cunha-talanta_2019.pdf application/pdf 1363253 https://riubu.ubu.es/bitstream/10259/5347/1/Cunha-talanta_2019.pdf 8d26eda40f4df162521c39c40f1ef118 MD5 1 10259/5347 oai:riubu.ubu.es:10259/5347 2022-04-08 12:31:37.349 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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