烟草科技2019，Vol.52Issue(8)：37-43,7.
基于聚邻苯三酚修饰的甲霜灵分子印迹传感器制备与应用
Preparation and application of metalaxyl molecular imprinted sensor based on pyrogallol modified electrode
摘要
Abstract
To develop a rapid and accurate method for determining metalaxyl residues in tobacco, a molecular imprinted sensor was prepared by electropolymerizing phenol on the surface of pyrogallol modified glassy carbon electrode with metalaxyl as the template under weak alkali conditions. The sensor was characterized by cyclic voltammetry and tested by differential pulse method. The results showed that: 1) The optimized preparation condition for this sensor was template/functional ratio 1/16, electropolymerization basement solution in a borax buffer with pH 9.0, and the elution time 20 min. 2) Under the optimized experimental condition, the limit of detection, recoveries, relative standard deviations (RSDs) of the developed method were 0.003 mg/kg, 98.5%-113.7% , 2.98%-4.26% , respectively. 3) The sensor was simple in application and rapid in responses and featured a high selectivity, it was suitable to the determination of metalaxyl residue in tobacco.关键词
分子印迹传感器/甲霜灵/邻苯三酚/电聚合/烟草Key words
Molecular imprinted sensor/Metalaxyl/Myrogallol/Electropolymerizing/Tobacco分类
农业科技引用本文复制引用
王春琼,曹秋娥,彭丽娟,李籽萱,张燕,李苓,陈丹,曾彦波,李郸,刘宇晨..基于聚邻苯三酚修饰的甲霜灵分子印迹传感器制备与应用[J].烟草科技,2019,52(8):37-43,7.基金项目
云南省烟草专卖局科技项目"烟草及其制品中酰胺类杀菌剂电化学分析方法的研究建立"(2017YN33). （2017YN33）
