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 ^[1] ; Wong, Ademar ^{[2, 3]} ; Khan, Sabir ^{[2, 1]} ; Picasso, Gino ^[1] ; del Pilar Taboada Sotomayor, Maria ^{[2, 3]}

Affiliation

^[1] Natl Univ Engn, Fac Sci, Lab Phys Chem Resr, Av Tupac Amaru 210, Lima - Peru

^[2] State Univ Sao Paulo UNESP, Inst Chem, Dept Analyt Chem, BR-14801970 Araraquara, SP - Brazil

^[3] Natl Inst Alternat Technol Detect Toxicol Evaluat, Araraquara, SP - Brazil

• Document type: Journal article
• Source: Electroanalysis; v. 33, n. 6 MAR 2021.
• Web of Science Citations: 0

Abstract

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 mu 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. (AU)

• FAPESP's process: 19/00677-7 - RADes-MIP - preparation and synthesis of materials for development of rapid analysis devices for monitoring emerging pollutants using highly selective biomimetic polymers based on molecular printing technology
• Grantee: Maria Del Pilar Taboada Sotomayor
• Support Opportunities: Regular Research Grants
• FAPESP's process: 14/50945-4 - INCT 2014: National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactivies
• Grantee: Maria Valnice Boldrin
• Support Opportunities: Research Projects - Thematic Grants