A disposable electrochemical sensor for the determination of indole-3-acetic acid based on poly(safranine T)-reduced graphene oxide nanocomposite

被引：62

作者：

Gan, Tian ^{[1
,3
]}

Hu, Chengguo ^{[1
]}

Chen, Zilin ^{[2
]}

Hu, Shengshui ^{[1
,3
]}

机构：

[1] Wuhan Univ, Coll Chem & Mol Sci, Key Lab Analyt Chem Biol & Med, Minist Educ, 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：

TALANTA | 2011年 / 85卷 / 01期

关键词：

Indole-3-acetic acid; Reduced graphene oxide; Poly(safranine T); Electropolymerization; Electrochemical sensor; PERFORMANCE LIQUID-CHROMATOGRAPHY; GRAPHITE OXIDE; CAPILLARY-ELECTROPHORESIS; CHEMICAL-REDUCTION; ASCORBIC-ACID; ELECTRODE; DOPAMINE; FLUORESCENCE; NANOSHEETS; OXIDATION;

D O I：

10.1016/j.talanta.2011.03.070

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A disposable electrochemical sensor for the determination of indole-3-acetic acid (IAA) based on nanocomposites of reduced graphene oxide (rGO) and poly(safranine T) (PST) was reported. The sensor was prepared by coating a rGO film on a pre-anodized graphite electrode (AGE) through dipping-drying and electrodepositing a uniform PST layer on the rGO film. Scanning electron microscopic (SEM) and infrared spectroscopic (IR) characterizations indicated that PST-rGO formed a rough and crumpled composite film on AGE, which exhibited high sensitive response for the oxidation of IAA with 147-fold enhancement of the current signal compared with bare AGE. The voltammetric current has a good linear relationship with IAA concentration in the range 1.0 x 10(-7)-7.0 x 10(-6) M, with a low detection limit of 5.0 x 10(-8) M. This sensor has been applied to the determination of IAA in the extract samples of several plant leaves and the recoveries varied in the range of 97.71-103.43%. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：310 / 316

页数：7

共 43 条

[1] Enzyme-Doped Graphene Nanosheets for Enhanced Glucose Biosensing [J].

Alwarappan, Subbiah ;

Liu, Chang ;

Kumar, Ashok ;

Li, Chen-Zhong .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (30) :12920-12924

[2] Direct Determination of Plant-Growth Related Metabolites by Capillary Electrophoresis with Spectrophotometric UV Detection [J].

Assuncao, Nilson A. ;

Arruda, Sandra C. C. ;

Martinelli, Adriana P. ;

Carrilho, Emanuel .

JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY, 2009, 20 (01) :183-187

[3] Graphite oxide:: Chemical reduction to graphite and surface modification with primary aliphatic amines and amino acids [J].

Bourlinos, AB ;

Gournis, D ;

Petridis, D ;

Szabó, T ;

Szeri, A ;

Dékány, I .

LANGMUIR, 2003, 19 (15) :6050-6055

[4] Preparation and characterization of ultrathin films layer-by-layer self-assembled from graphite oxide nanoplatelets and polymers [J].

Cassagneau, T ;

Guérin, F ;

Fendler, JH .

LANGMUIR, 2000, 16 (18) :7318-7324

[5] Mechanically strong, electrically conductive, and biocompatible graphene paper [J].

Chen, Haiqun ;

Mueller, Marc B. ;

Gilmore, Kerry J. ;

Wallace, Gordon G. ;

Li, Dan .

ADVANCED MATERIALS, 2008, 20 (18) :3557-+

[6] Chemical oxidative polymerization of safranines [J].

Ciric-Marjanovic, Gordana ;

Blinova, Natalia V. ;

Trchova, Miroslava ;

Stejskal, Jaroslav .

JOURNAL OF PHYSICAL CHEMISTRY B, 2007, 111 (09) :2188-2199

[7] Use of a graphite-polyurethane composite electrode for electroanalytical determination of indole-3-acetic acid in soil samples [J].

de Toledo, R. A. ;

Vaz, C. M. P. .

MICROCHEMICAL JOURNAL, 2007, 86 (02) :161-165

[8]

Fu JH, 2009, CHINESE J ANAL CHEM, V37, P1324

[9] Layered Graphene/Quantum Dots for Photovoltaic Devices [J].

Guo, Chun Xian ;

Yang, Hong Bin ;

Sheng, Zhao Min ;

Lu, Zhi Song ;

Song, Qun Liang ;

Li, Chang Ming .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2010, 49 (17) :3014-3017

[10] Platinum Nanoparticle Ensemble-on-Graphene Hybrid Nanosheet: One-Pot, Rapid Synthesis, and Used as New Electrode Material for Electrochemical Sensing [J].

Guo, Shaojun ;

Wen, Dan ;

Zhai, Yueming ;

Dong, Shaojun ;

Wang, Erkang .

ACS NANO, 2010, 4 (07) :3959-3968

← 1 2 3 4 5 →