Fabrication and application of a novel plant hormone sensor for the determination of methyl jasmonate based on self-assembling of phosphotungstic acid-graphene oxide nanohybrid on graphite electrode

被引：48

作者：

Gan, Tian ^{[1
,3
]}

Hu, Chengguo ^{[1
]}

Chen, Zilin ^{[2
]}

Hu, Shengshui ^{[1
,3
]}

机构：

[1] Wuhan Univ, Minist Educ, Coll Chem & Mol Sci, Key Lab Analyt Chem Biol & Med, Wuhan 430072, Peoples R China

[2] Wuhan Univ, Coll Pharm, Dept Pharmaceut Anal, Wuhan 430072, Peoples R China

[3] Chinese Acad Sci, State Key Lab Transducer Technol, Beijing 10080, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2010年 / 151卷 / 01期

关键词：

Phosphotungstic acid; Graphene oxide; Methyl jasmonate; Plant hormone; Sensor; ADSORPTION-DESORPTION INTERFACE; LIQUID-CHROMATOGRAPHY; GAS-CHROMATOGRAPHY; MASS-SPECTROMETRY; QUANTIFICATION; OXIDATION; HETEROPOLYANION; IDENTIFICATION; NANOPARTICLES; CATALYST;

D O I：

10.1016/j.snb.2010.10.001

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel methyl jasmonate (MeJA) sensor based on phosphotungstic acid/graphene oxide (PTA/GO) nanohybrid was developed by layer-by-layer assembling on a pre-anodized graphite electrode. Owing to the synergistic effect of the good conductivity, high surface area of GO and the solid super-acidity of PTA, the MeJA electrochemical sensor exhibited excellent electrocatalytic activity for the oxidation of alkylene group in MeJA, displaying as a wide linear response from 5.0 x 10(-7) to 8.0 x 10(-5) M and a low detection limit of 2.0 x 10(-7) M in 0.1 M HClO4 solution. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：8 / 14

页数：7

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