Flow-Injection Amperometric Determination of Ceftriaxone, Cefotaxime, and Cefoperazone Using an Electrode Modified with a Binary System of Gold Particles and Mixed-Valent Ruthenium Oxides

被引：0
|
作者：
Shaidarova, L. G. [1 ]
Chelnokova, I. A. [1 ]
Il'ina, M. A. [1 ]
Budnikov, H. C. [1 ]
机构：
[1] Kazan Fed Univ, Butlerov Inst Chem, Kazan 420008, Tatarstan, Russia
来源：
JOURNAL OF ANALYTICAL CHEMISTRY | 2024年 / 79卷 / 08期
关键词：
chemically modified electrodes; electrooxidation; cephalosporins; flow-injection analysis; VOLTAMMETRIC DETERMINATION; CARBON NANOTUBES; COBALT OXIDES; GLASSY-CARBON; NANOPARTICLES; CAFFEINE; CYSTEINE; PLASMA;
D O I：
10.1134/S1061934824700539
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Modified electrodes based on gold particles, mixed-valence ruthenium oxides, and a binary system combining these components were developed for the voltammetric determination of ceftriaxone, cefotaxime, and cefoperazone. The electrode with the binary system of gold particles and mixed-valence ruthenium oxides, which exhibited the best performance, was used for the detection of cephalosporins in flow-injection analysis. Optimal conditions for the detection of cephalosporins in a flow-injection system were selected. The dependence of the analytical signal on the concentration of the compounds under consideration is linear on logarithmic coordinates over the range from 5 x 10(-7) to 5 x 10(-3) M. The proposed procedure was tested in the determination of cephalosporins in pharmaceuticals.
引用
收藏
页码：1159 / 1165
页数：7
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