Artículo

Cu2+ ion-sensitive surface on graphite electrodes

Pedre, IgnacioIcon ; Méndez de Leo, Lucila PaulaIcon ; González, Graciela AliciaIcon
Fecha de publicación: 10/11/2019
Editorial: Springer Heidelberg
Revista: Analytical and Bioanalytical Chemistry
ISSN: 1618-2642
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:

Resumen

A new electrochemical interface based on polyacrylic acid (PAAcid) immobilized in a Nafion® polymeric matrix on graphite screen-printed electrodes for detecting copper is presented. The copper is retained in the surface due to the capacity of the polyacid to chelate metals, and quantified using square wave voltammetry. The response was characterized by spectroscopic techniques (UV-vis-IR), which confirmed the chelation from the Cu2+ ions by the acid. A calibration curve is presented, showing good linearity and repeatability and its usefulness as a sensor. The range of operation goes from 15 to 50 μM, with a detection limit of 12 μM, making the sensor useful for measurements in environmental samples (after a preconcentration step) and in drinking water.
Palabras clave: COPPER , ENVIRONMENTAL ELECTROANALYSIS , FT-IR CHARACTERIZATION , SENSITIVE INTERFACE
 
Archivos asociados
Tamaño: 1.906Mb
Formato: PDF
.
Licencia
info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/121179
URL: http://link.springer.com/10.1007/s00216-019-02142-0
DOI: http://dx.doi.org/10.1007/s00216-019-02142-0
Colecciones
Articulos(INQUIMAE)
Articulos de INST.D/QUIM FIS D/L MATERIALES MEDIOAMB Y ENERGIA
Citación
Pedre, Ignacio; Méndez de Leo, Lucila Paula; González, Graciela Alicia; Cu2+ ion-sensitive surface on graphite electrodes; Springer Heidelberg; Analytical and Bioanalytical Chemistry; 411; 29; 10-11-2019; 7761-7770
Compartir
Altmétricas