Amperometric Detection of Tryptophane and Pyridoxine on a Dual <bold>Screen-Printed</bold> Electrode Modified by Gold Nanoparticles in a Flow-Injection System

被引：6
|
作者：
Shaidarova, L. G. [1 ]
Chelnokova, I. A. [1 ]
Il'ina, M. A. [1 ]
Leksina, Yu. A. [1 ]
Budnikov, H. C. [1 ]
机构：
[1] Kazan Fed Univ, Butlerov Inst Chem, Kazan 420008, Russia
来源：
JOURNAL OF ANALYTICAL CHEMISTRY | 2019年 / 74卷 / 06期
关键词：
chemically modified electrodes; gold nanoparticles; electrooxidation of tryptophane and pyridoxine; flow-injection analysis; dual screen-printed electrode; LIQUID-CHROMATOGRAPHY METHOD; CHEMILUMINESCENCE DETERMINATION; ASCORBIC-ACID; RUTHENIUM; THIAMINE; BEHAVIOR; IRIDIUM;
D O I：
10.1134/S106193481906011X
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A method is developed for the flow-injection amperometric determination of tryptophane and pyridoxine on a screen-printed electrode with electrodeposited gold nanoparticles. The dependence of the analytical signal on the concentrations of tryptophane and pyridoxine on the logarithmic coordinates is linear in the ranges from 5 x 10(-7) to 5 x 10(-3) and from 5 x 10(-8)x to 5 x 10(-3) M, respectively. A possibility of the simultaneous amperometric determination of tryptophane and pyridoxine on a dual screen-printed electrode modified by gold nanoparticles in a flow-injection system is shown. The developed method is approved in the determination of tryptophane and pyridoxine in medicinal preparations.
引用
收藏
页码：584 / 590
页数：7
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