Details

Autor(en) / Beteiligte

• Tu, Nguyen Thi Thanh
• Sy, Phung Chi
• Thien, Tran Vinh
• Toan, Tran Thanh Tam
• Phong, Nguyen Hai
• Long, Hoang Thai
• Khieu, Dinh Quang

Titel

Microwave-assisted synthesis and simultaneous electrochemical determination of dopamine and paracetamol using ZIF-67-modified electrode

Ist Teil von

• Journal of materials science, 2019-09, Vol.54 (17), p.11654-11670

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In the present research, zeolitic imidazolate framework-67 (ZIF-67) was synthesized through a microwave-assisted method and used as an electrode modifier for simultaneous determination of dopamine (DPM) and paracetamol (PRA). The as-prepared materials were characterized by X-ray diffractometry, scanning electron microscopy, nitrogen adsorption/desorption isotherms, and X-ray photoelectron spectroscopy. It was found that the proposed microwave-assisted approach required a short synthesis time and provided the ZIF-67 with excellent textural properties and high yield rate as compared to conventional hydrothermal processes. The as-synthesized ZIF-67 possessed excellent textural properties and manifested a superior electrocatalytic activity toward the oxidation of PRA and DPM. The electrochemical oxidation of DPM and PRA was investigated by both cyclic voltammetry and differential pulse voltammetry. The ZIF-67 modified electrode caused electrocatalytic oxidation of DPM and PRA in a linear response range from 2.0 × 10 −6 to 22 × 10 −6  M with the detection limits of 1.3 × 10 −6  M and 1.4 × 10 −6  M, respectively. A proposed method was successfully applied to analyze DMP and PRA in pharmaceutical preparations.