Solid‐state Electrochemical Sensor Based on a Cross‐linked Copper(II)‐doped Copolymer and Carbon Nanotube Material for Selective and Sensitive Detection of Monohydrogen Phosphate.

Autor:	Topcu, Cihan, Coldur, Fatih, Caglar, Bulent, Ozdokur, K. Volkan, Cubuk, Osman
Předmět:	ELECTROCHEMICAL sensors POTENTIOMETRY SCANNING electron microscopy COPPER DETECTION limit PHOSPHATE glass PHOSPHATES CARBON nanotubes
Zdroj:	Electroanalysis; Mar2022, Vol. 34 Issue 3, p474-484, 11p
Abstrakt:	A novel solid‐state electrochemical sensor based on a newly synthesized cross‐linked copper(II) doped‐copolymer and carbon nanotube material was developed for the direct determination of monohydrogen phosphate ions (HPO42−). The synthesized copolymers were characterized by FTIR, XPS, TG/DTG‐DTA and SEM techniques. The sensor had a Nernstian slope:‐30.7±0.4 mV/decade, linear concentrations range: 1.0×10−6 ‐ 1.0×10−1 M, detection limit: 6.5×10−7 M, response time: 4 s and life time: 17 weeks. The sensor displayed constant potentials in the pH range 7.0‐9.5. The sensor was successfully used as an indicator electrode in potentiometric titration and the direct determination of HPO42− in water samples. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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