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Sensors 2013, 13(12), 16234-16244; doi:10.3390/s131216234
Article

Electrochemical Determination of Glycoalkaloids Using a Carbon Nanotubes-Phenylboronic Acid Modified Glassy Carbon Electrode

1
,
1
,
1
,
1
 and
1,2,*
1 College of Horticulture and Landscape, Hunan Agriculture University, Changsha 410128, China 2 The Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
* Author to whom correspondence should be addressed.
Received: 5 October 2013 / Revised: 12 November 2013 / Accepted: 18 November 2013 / Published: 27 November 2013
(This article belongs to the Special Issue Inorganic-Organic Hybrid Biological and Chemical Sensors)
View Full-Text   |   Download PDF [370 KB, 21 June 2014; original version 21 June 2014]   |  

Abstract

A versatile strategy for electrochemical determination of glycoalkaloids (GAs) was developed by using a carbon nanotubes-phenylboronic acid (CNTs-PBA) modified glassy carbon electrode. PBA reacts with α-solanine and α-chaconine to form a cyclic ester, which could be utilized to detect GAs. This method allowed GA detection from 1 μM to 28 μM and the detection limit was 0.3 μM. Affinity interaction of GAs and immobilized PBA caused an essential change of the peak current. The CNT-PBA modified electrodes were sensitive for detection of GAs, and the peak current values were in quite good agreement with those measured by the sensors.
Keywords: carbon nanotubes; phenylboronic acid; glycoalkaloids; sensor carbon nanotubes; phenylboronic acid; glycoalkaloids; sensor
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Wang, H.; Liu, M.; Hu, X.; Li, M.; Xiong, X. Electrochemical Determination of Glycoalkaloids Using a Carbon Nanotubes-Phenylboronic Acid Modified Glassy Carbon Electrode. Sensors 2013, 13, 16234-16244.

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