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A Selective Electrochemical Sensor for the Detection of Cd(II) Based on a Carbon Paste Electrode Impregnated with a Novel Ion‐imprinted Hybrid Polymer
Author(s) -
Adauto Anais,
Wong Ademar,
Khan Sabir,
Picasso Gino,
Pilar Taboada Sotomayor María
Publication year - 2021
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.202100007
Subject(s) - carbon paste electrode , electrochemistry , electrode , electrochemical gas sensor , ion , carbon fibers , detection limit , materials science , molecularly imprinted polymer , polymer , analytical chemistry (journal) , chemistry , nuclear chemistry , inorganic chemistry , selectivity , chromatography , cyclic voltammetry , composite number , composite material , organic chemistry , catalysis
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 μg 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.