A Selective Electrochemical Sensor for the Detection of Cd(II) Based on a Carbon Paste Electrode Impregnated with a Novel Ion-imprinted Hybrid Polymer

• Autores: Adauto A., Wong A., Khan S., Picasso G., del Pilar Taboada Sotomayor M.
• Formato: artículo
• Fecha de Publicación: 2021
• Institución: Consejo Nacional de Ciencia Tecnología e Innovación
• Repositorio: CONCYTEC-Institucional
• Lenguaje: inglés
• OAI Identifier: oai:repositorio.concytec.gob.pe:20.500.12390/2415
• Enlace del recurso: https://hdl.handle.net/20.500.12390/2415; https://doi.org/10.1002/elan.202100007
• Nivel de acceso: acceso abierto
• Materia: Ion-imprinted polymer; carbon paste electrode; Cd(II); http://purl.org/pe-repo/ocde/ford#1.04.0

An electrochemical sensor (CPE-IIHP) was developed for Cd(II) using a carbon paste electrode (CPE) impregnated with an ion-imprinted hybrid polymer (IIHP). A CPE-NIHP was also prepared for comparison. DPASV was used to optimize the sensor response and quantify Cd(II). The sensor presented a wide linear range from low concentrations of Cd(II): 1 to 100 ?g L?1 and high concentrations of Cd(II): 2.75 to 5.0 mg L?1. Ions such as Co(II), Pb(II), Ni(II), Zn(II), Fe(II), Fe(III), Sn(II) and Cu(II), showed no variation in the Cd(II) signal. The CPE-IIHP was successfully applied in river and drinking water analysis, revealing the great potential for its application.