烟酰胺分子印迹电化学传感器研制及饮料中烟酰胺的测定

食品科学 ›› 2013, Vol. 34 ›› Issue (22): 332-335.

烟酰胺分子印迹电化学传感器研制及饮料中烟酰胺的测定

李建平,李建平

桂林理工大学化学与生物工程学院

收稿日期:2013-01-19 修回日期:2013-10-28 出版日期:2013-11-25 发布日期:2013-12-05
通讯作者: 李建平 E-mail:likianping@263.net
基金资助:
国家自然科学基金项目;广西自然科学基金

Fabrication of Molecularly Imprinted Electrochemical Sensor for Determination of Nicotinamide in Beverage

¹,Jian-Ping Li

Received:2013-01-19 Revised:2013-10-28 Online:2013-11-25 Published:2013-12-05
Contact: Jian-Ping Li E-mail:likianping@263.net

摘要/Abstract

摘要：

研制了烟酰胺分子印迹电化学传感器。以邻苯二胺作为功能单体，烟酰胺为模板分子，在pH=5.7醋酸盐缓冲溶液中采用循环伏安法在玻碳电极表面电聚合形成了分子印迹敏感膜，并以此作为识别元件制备了电流型烟酰胺分子印迹电化学传感器，实验结果表明在烟酰胺浓度在0.01 ?mol/L ~ 1.1 ?mol/L的范围内呈良好的线性关系。检出限达4.5×10-9 mol/L。该传感器具有灵敏度高、选择性好、制备简单且成本低的优势。据此对饮料中微量的烟酰胺进行定量分析。

Abstract:

In this paper, a sensitive sensor based on the molecularly imprinted polymer(MIP) of o-phenylenediamine was proposed, and its configuration and performance were studied. The progress of the electro polymerization is performed in a acetate buffer solution (pH = 5.7) containing 1.0mmol/L nicotinamide and 3.0mmol/L o-phenylenediamine on the surface of a glassy carbon electrode. The molecularly imprinted polymer membrane was characterized using cyclic voltammetry. The linear range is 0.01?mol/L ~ 1.1?mol/L with a detection limit of 4.5×10-9 mol/L. The sensor was sensitive, selective, easy in preparing with a low price. It was applied to determination of trace nicotinamide in beverage.

中图分类号:

O651.07

李建平李建平. 烟酰胺分子印迹电化学传感器研制及饮料中烟酰胺的测定[J]. 食品科学, 2013, 34(22): 332-335.

Jian-Ping Li. Fabrication of Molecularly Imprinted Electrochemical Sensor for Determination of Nicotinamide in Beverage[J]. FOOD SCIENCE, 2013, 34(22): 332-335.

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