Molecularly imprinted electrochemical sensor for the highly selective and sensitive determination of melamine

Benzhi Liu; Bo Xiao; Liqiang Cui; Min Wang

doi:10.1016/j.msec.2015.05.080

Molecularly imprinted electrochemical sensor for the highly selective and sensitive determination of melamine

Mater Sci Eng C Mater Biol Appl. 2015 Oct:55:457-61. doi: 10.1016/j.msec.2015.05.080. Epub 2015 May 31.

Authors

Benzhi Liu¹, Bo Xiao², Liqiang Cui², Min Wang²

Affiliations

¹ School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu Province, China. Electronic address: benzhiliu@163.com.
² School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu Province, China.

PMID: 26117777
DOI: 10.1016/j.msec.2015.05.080

Abstract

A selective and sensitive molecularly imprinted electrochemical sensor was developed for the determination of melamine. Carbon nanotube-ionic liquid composite was used as a carrier to enhance the number of imprinted cavities and then improve the selectivity and sensitivity of the sensor. The proposed sensor showed a linear relationship with the concentration of melamine in the range of 0.4 to 9.2 μM, with a detection limit of 0.11 μM. The sensor was successfully applied to the determination of melamine in milk products with good recovery.

Keywords: Electrochemical sensor; Melamine; Milk products; Molecularly imprinted polymer.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electrochemical Techniques / instrumentation*
Ionic Liquids
Limit of Detection
Molecular Imprinting*
Nanotubes, Carbon
Reproducibility of Results
Triazines / analysis*

Substances

Ionic Liquids
Nanotubes, Carbon
Triazines
melamine