Electrochemical Determination of Diclofenac by Using ZIF-67/g-C3N4 Modified Electrode. (3rd September 2021)

• Record Type: Journal Article
• Authors: Hoa, Dang Thi Ngoc; Tu, Nguyen Thi Thanh; Son, Le Van Thanh; Son, Le Vu Truong; Toan, Tran Thanh Tam; Thong, Pham Le Minh; Nhiem, Dao Ngoc; Lieu, Pham Khac; Khieu, Dinh Quang
• Other Names: Le Thanh Son Academic Editor.
• Is Part Of: Adsorption science & technology. Volume 2021(2021)
• Publication Date: 2021-09-03
• Subjects: Adsorption -- Periodicals; Adsorption; Periodicals; 541.33505
• DOI: 10.1155/2021/7896286
• Languages: English
• ISSNs: 0263-6174

Abstract

Abstract : A facial differential pulse voltammetric procedure using a glassy carbon electrode modified with zeolite imidazolate framework-67/graphitic carbon nitride (ZIF-67/ g- C3 N4 ) for the diclofenac (DCF) determination is demonstrated. ZIF-67/ g- C3 N4 with different mass ratios of the components was synthesized in a self-assembly process. The obtained materials were characterized by using X-ray diffraction, scanning electron microscopy (SEM), EDX-mapping, and nitrogen adsorption/desorption isotherms. The peak current varies linearly with the DCF concentration in the range of 0.2–2.2 μ mol·L −1 and has a detection limit of 0.071 μ mol·L −1 . The modified electrode exhibits acceptable repeatability, reproducibility, and selectivity towards DCF. The proposed electrode allows determining DCF in human urine without pretreatment, and the results are comparable with those determined with HPLC.