| Autor: |
Rejab, Fatma1 (AUTHOR) fatmarejab35@gmail.com, Echabaane, Mosaab2 (AUTHOR), Rouis, Ahlem1 (AUTHOR), Ouada, Hatem Ben3 (AUTHOR) |
| Předmět: |
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| Zdroj: |
Water, Air & Soil Pollution. Jan2023, Vol. 234 Issue 1, p1-11. 11p. |
| Abstrakt: |
In recent years, the elaboration of novel platforms for the determination of copper ions in environmental or biological samples has become of interest to researchers. In this work, an eco-friendly impedimetric sensor based on biopolymer (extracellular polymeric substances (EPS)) was developed for a sensitive and selective detection of copper ions. FTIR and UV–Vis measurements were used to identify the principal groups of EPS and their optical proprieties. They have confirmed the ability of EPS to recognize Cu2+. Platinum electrode (Pt) was modified using EPS for the development of an impedimetric sensor. It was characterized by electrochemical impedance spectroscopy (EIS). The impedimetric behavior of the modified electrode toward Cu2+ exhibits a linear response ranging from 10−10 M to 10−5 M with a detection limit of 7.25 10−11 M. Finally, the sensitivity, repeatability, reusability, and selectivity of the proposed sensor are discussed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
GreenFILE |
| Externí odkaz: |
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Full text from SpringerLink