摘要
分别以L-苯丙氨酸和对氨基苯酚为功能分子和印迹分子,采用循环伏安法将二者聚合到玻碳电极表面,并通过洗脱,制备出对氨基苯酚分子印迹传感器。考察了底液成分及浓度、扫描圈数、扫描速度、电压范围、洗脱液种类、洗脱时间等因素对传感器性能的影响。实验结果表明:该分子印迹传感器检测对氨基苯酚具有特异的识别性,在3. 0×10^(-6)mol/L^(-1). 0×10^(-3)mol/L范围内,对氨基苯酚的氧化峰电流与浓度呈正比,检出限达8. 0×10^(-7)mol/L,用于样品分析的结果令人满意。
The p-amino-phenol molecularly imprinted sensor was prepared by aggregation in the paper through the cyclic vohammetry followed by the elution on the surface of a glassy carbon electrode, using 1- phenylalanine and p-amino-phenol as functional molecules and imprinted molecules, respectively. The eft）cts on the property of the as-prepared sensor were investigated under dirt）rent conditions, such as the liquid composition and concentration, scanning number of turns, scanning speed,voltage range, the type of eluent, elution time, and so on. The experimental resuhs showed that the molecularly imprinted sensor had a good special recognition for the detection of p-amino-phenol. In the range of 3.0×10^-6mol/L-1.0×10^-3mol/L, the cmTent of p-amino-phenol was proportional to its concentration. The detection limit was 8.0× 10^-7 mo]/L. The method was used to measure the concentration of p-amino-phenol in the samples with satisfactory results. Key words ： molecular imprinting ; p-amino-phenol ; 1-phenylalanine ; electrical aggregation
作者
胡文娜
郑春红
HU Wen-na;ZHENG Chun-hong(School of Material ＆ Chemical Engineering, Bengbu University, Bengbu,233030, Anhui;Institute of Chemical and Applied Technology, Bengbu University, Bengbu,233030, Anhui)
出处
《蚌埠学院学报》
2018年第5期14-18,共5页
Journal of Bengbu University
基金
安徽省自然科学基金面上项目(1708085MB34)
安徽省教育厅自然科学重点研究项目(KJ2015A184)
安徽省教育厅自然科学研究项目(113052015kj03)
国家级大学生创新训练项目(201611305023)
蚌埠学院应用化学重点学科项目
关键词
分子印迹
对氨基苯酚
L-苯丙氨酸
电聚合
molecular imprinting
p-amino-phenol
1-phenylalanine
electrical aggregation
