2026-04-22T16:23:35Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/43802022-04-29T12:02:47Zcom_10259_4376com_10259_5086com_10259_2604col_10259_4377

Barquero Quirós, Miriam b67ae431-a32e-4d35-a48b-d80c8b11666c 500 Domínguez Renedo, Olga 159 500 Alonso Lomillo, Mª Asunción 21 500 Arcos Martínez, Julia 36 500 0000-0002-4932-6445 2017-03-20T08:50:47Z 2017-03-20T08:50:47Z 2014-05 http://hdl.handle.net/10259/4380 A novel amperometric biosensor for the determination of Al(III) based on the inhibition of the enzyme acetylcholinesterase has been developed. The immobilization of the enzyme was performed on screen-printed carbon electrodes modified with gold nanoparticles. The oxidation signal of acetylthiocholine iodide enzyme substrate was affected by the presence of Al(III) ions leading to a decrease in the amperometric current. The developed system has a detection limit of 2.1 ± 0.1 μM for Al(III). The reproducibility of the method is 8.1% (n = 4). Main interferences include Mo(VI), W(VI) and Hg(II) ions. The developed method was successfully applied to the determination of Al(III) in spiked tap water . The analysis of a certified standard reference material was also carried out. Both results agree with the certified values considering the respective associated uncertainties. Research Vicerrectory of Costa Rica University (Project 804-B0-197), Junta de Castilla y León (BU212A12-2), Ministerio de Ciencia e Innovación (MICINN) and Fondo Europeo de Desarrollo Regional (FEDER) (INNPACTO SERIBIO 2011–2014) and TEC-2009/12029 application/pdf eng MDPI Sensors, 2014, V. 14, n. 5, p. 8203-8216 http://dx.doi.org/10.3390/s140508203 Attribution 3.0 Unported http://creativecommons.org/licenses/by/3.0/ info:eu-repo/semantics/openAccess acetylcholinesterase biosensor aluminum acetylthiocholine iodide screen-printed electrodes gold nanoparticles Chemistry, Analytic Química analítica Acetylcholinesterase Inhibition-Based Biosensor for Aluminum(III) Chronoamperometric Determination in Aqueous Media Artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 908 https://riubu.ubu.es/bitstream/10259/4380/8/license_rdf f9a6a4096bf314846151c97900b2090d MD5 8 THUMBNAIL Barquero-Sensors_2014.pdf.jpg Barquero-Sensors_2014.pdf.jpg IM Thumbnail image/jpeg 4497 https://riubu.ubu.es/bitstream/10259/4380/7/Barquero-Sensors_2014.pdf.jpg 48c9d5545c9edc72a0766d120a1a12bf MD5 7 ORIGINAL Barquero-Sensors_2014.pdf Barquero-Sensors_2014.pdf application/pdf 695843 https://riubu.ubu.es/bitstream/10259/4380/1/Barquero-Sensors_2014.pdf 5e833b5bc49ea173647c2419d820561b MD5 1 LICENSE license.txt license.txt text/plain; charset=utf-8 998 https://riubu.ubu.es/bitstream/10259/4380/5/license.txt aa90105e1c90a1b4fe810649aa967b7d MD5 5 TEXT Barquero-Sensors_2014.pdf.txt Barquero-Sensors_2014.pdf.txt Extracted text text/plain 33378 https://riubu.ubu.es/bitstream/10259/4380/6/Barquero-Sensors_2014.pdf.txt 170dbbc6e81a1fb050a1066db115cad6 MD5 6 10259/4380 oai:riubu.ubu.es:10259/4380 2022-04-29 14:02:47.086 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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