Determination of pentahydroxyflavones using coated chitosan multi-wall carbon nanotubes and an ionic liquid glassy carbon electrode by adsorption stripping voltammetry (AdSV)

被引：11

作者：

Marino, Adrian ^{[1
]}

Leiva, Yaritza ^{[1
]}

Bolanos, Karen ^{[1
]}

Garcia-Beltran, Olimpo ^{[2
]}

Nagles, Edgar ^{[2
]}

机构：

[1] Univ Amazonia, Fac Ciencias Basicas, Programa Quim, Florencia, Colombia

[2] Univ Ibague, Fac Ciencias Nat & Matemat, Ibague 730001, Colombia

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2015年 / 759卷

关键词：

Pentahydroxyflavone; Adsorption voltammetry; Multi-wall carbon nanotubes; Ionic liquids; ACTIVE CONSTITUENTS; QUERCETIN; MORIN; FILM; LEAD;

D O I：

10.1016/j.jelechem.2015.11.008

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this work, the determination of pentahydroxyflavones on a glassy carbon electrode modified with chitosan and multi-walled carbon nanotubes (Ch-MWCNT) was studied. The presence of ionic liquids (Us) on the surface of the modified electrode (Ch-MWCNT-LI-GCE) increased the oxidation current by nearly 20%. The pH and electrochemical parameters (adsorptive potential and time accumulation) were optimized based on the oxidation of morin to obtain the following values: pH, 3.2; E-ads, -0.10 V; and t(ads), 70 s. The detection limit was 0.54 x 10(-7) mol L-1 and the RSD was 1.7%. The new method was used to quantify pentahydroxyflavones in plant tissue samples. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：153 / 157

页数：5

共 50 条

[1] Sensitive Adsorption Stripping Voltammetric Determination of Reserpine by a Glassy Carbon Electrode Modified with Multi-Wall Carbon Nanotubes
Huajie Zhang
Kangbing Wu
[J]. Microchimica Acta, 2005, 149 : 73 - 78
[2] Sensitive adsorption stripping voltammetric determination of reserpine by a glassy carbon electrode modified with multi-wall carbon nanotubes
Zhang, HJ
Wu, KB
[J]. MICROCHIMICA ACTA, 2005, 149 (1-2) : 73 - 78
[3] Voltammetric Determination of Tetracycline by Using Multi-Wall Carbon Nanotube - Ionic Liquid Film Coated Glassy Carbon Electrode
Guo, Gaiping
Zhao, Faqiong
Xiao, Fei
Zeng, Baizhao
[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, 2009, 4 (09): : 1365 - 1372
[4] Determination of butylparaben by adsorptive stripping voltammetry at glassy carbon electrodes modified with multi-wall carbon nanotubes
Angeles Lorenzo, Maria
Sanchez Arribas, Alberto
Moreno, Monica
Bermejo, Esperanza
Chicharro, Manuel
Zapardiel, Antonio
[J]. MICROCHEMICAL JOURNAL, 2013, 110 : 510 - 516
[5] Electrochemical Determination of Melamine with a Glassy Carbon Electrode Coated with a Multi-Wall Carbon Nanotube/Chitosan Composite
Zhao, Tingkai
Liu, Lehao
Li, Guangming
Dang, Alei
Li, Tiehu
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2012, 159 (05) : K141 - K145
[6] Determination of Salbutamol Sulfate Based on Chitosan Multi-Wall Carbon Nanotubes Film Modified Glassy Carbon Electrode
Cao, Zhong
Zhao, Yu-Ting
Dai, Yi-Min
Long, Shu
Guo, Xiao-Cui
Yang, Rong-Hua
[J]. SENSOR LETTERS, 2011, 9 (05) : 1985 - 1989
[7] Nafion/multi-wall carbon nanotubes composite film coated glassy carbon electrode for sensitive determination of caffeine
Yang, Suling
Yang, Ran
Li, Gang
Qu, Lingbo
Li, Jianjun
Yu, Lanlan
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2010, 639 (1-2) : 77 - 82
[8] Electrochemical Sensor for Determination of Fenitrothion at Multi-wall Carbon Nanotubes Modified Glassy Carbon Electrode
Tefera, M.
Tessema, M.
Admassie, S.
Mehretie, S.
[J]. ANALYTICAL AND BIOANALYTICAL CHEMISTRY RESEARCH, 2015, 2 (02): : 139 - 150
[9] Voltammetric behavior and determination of phenylephrine at a glassy carbon electrode modified with multi-wall carbon nanotubes
Zhu, Yuan-hai
Zhang, Zhi-ling
Zhao, Wei
Pang, Dai-wen
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2006, 119 (01) : 308 - 314
[10] Determination of dopamine using carbon paste electrode modified with multi-wall carbon nanotube by differential pulse stripping voltammetry
Abdoljavadi, Maryam
Masrournia, Mahboubeh
[J]. CLINICAL BIOCHEMISTRY, 2011, 44 (13) : S319 - S319

← 1 2 3 4 5 →