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Hồ Xuân Anh Vũ, Nguyễn Văn Hợp(3)(1), Nguyễn Đức Vũ Quyên, Hồ Văn Minh Hải(2), Nguyễn Hải Phong, Nguyễn Đình Luyện, Phạm Khắc Liệu

XÁC ĐỊNH ĐỒNG THỜI CHLORAMPHENICOL VÀ TINIDAZOLE TRONG SỮA BỘT BẰNG PHƯƠNG PHÁP VON-AMPE HÒA TAN DÙNG ĐIỆN CỰC BIẾN TÍNH VỚI VẬT LIỆU COMPOSITE MnO2/GO

SIMULTANEOUS DETERMINATION OF CLORAMPHENICOL AND TINIDAZOL IN MILK POWDER BY STRIPPING VOLTAMMETRY METHOD USING MODIFIED ELECTROD WITH MnO2/GO COMPOSITE MATERIAL

Tạp chí Phân tích Hóa, Lý và Sinh học

2022

4

37

Graphene oxide (GO) was first synthesized by the improved Hummers W.S. method. It was then modified with manganese dioxide (MnO2) to obtain MnO2/GO composite material by chemical method.The parameters in the linear scanning adsorptive cathodic stripping voltammetry method (LS-AdCSV) include the amount of material, the accumulation potential and time, the potential sweep rate, and the influence of some organics and inorganics on the peak current of chloramphenicol (CAP) and tinidazole (TNZ), respectively. Under optimised conditions, the simultaneous determination of CAP and TNZ using the MnO2/ERGO/Naf/GCE sensor shows a linear concentration range from 1.0 to 20 µM, with detection limits of 1.50 M and 2.24 M. Furthermore, the proposed method was successfully applied for the simultaneous determination of CAP and TNZ in milk powder samples

Graphene oxide (GO) was first synthesized by the improved Hummers W.S. method. It was then modified with manganese dioxide (MnO2) to obtain MnO2/GO composite material by chemical method.The parameters in the linear scanning adsorptive cathodic stripping voltammetry method (LS-AdCSV) include the amount of material, the accumulation potential and time, the potential sweep rate, and the influence of some organics and inorganics on the peak current of chloramphenicol (CAP) and tinidazole (TNZ), respectively. Under optimised conditions, the simultaneous determination of CAP and TNZ using the MnO2/ERGO/Naf/GCE sensor shows a linear concentration range from 1.0 to 20 µM, with detection limits of 1.50 M and 2.24 M. Furthermore, the proposed method was successfully applied for the simultaneous determination of CAP and TNZ in milk powder samples

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