A Novel Electrochemical Sensor Based on Modified Carbon Paste Electrode with ZnO Nanorods for the Voltammetric Determination of Indole-3-acetic Acid in Plant Seed Extracts

被引：13

作者：

Rabie, E. M. ^{[1
]}

Shamroukh, A. A. ^{[1
]}

Khodari, M. ^{[1
]}

机构：

[1] South Valley Univ, Fac Sci, Chem Dept, Qena 83523, Egypt

来源：

ELECTROANALYSIS | 2022年 / 34卷 / 05期

关键词：

Carbon Paste Electrode (CPE); Indole-3-Acetic Acid (IAA); ZnO nanorods (ZnO NRs); Cyclic voltammetry (CV); Linear Sweep Voltammetry (LSV); Square Wave Voltammetry (SWV); Differential pulse Voltammetry (DPV); PERFORMANCE LIQUID-CHROMATOGRAPHY; IONIC LIQUID; ACID; FABRICATION; OXIDATION; SILICA; AUXIN;

D O I：

10.1002/elan.202100420

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Detection of indole-3-acetic acid (IAA), as a phytohormone, is important for precision farming, plant phenotyping, and crop management. Herein, IAA was detected in bean and wheat plant seeds extractions using zinc oxide nanorods/carbon paste electrode (ZnO NRs/CPE). ZnO NRs/CPE showed excellent electrocatalytic activity, high sensitivity, and selectivity toward the oxidation of IAA. The linearity range was from 30.x10(-8) to 5.0x10(-6) M (r(2)=0.996, n=10), with a detection limit of 1.7x10(-8) M. Moreover, ZnO NRs/CPE exhibited high reproducibility, with a standard deviation of 1.0 % for six successive measurements of IAA.

引用

页码：883 / 891

页数：9

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