烟草科技2017，Vol.50Issue(7)：40-47,8.
烟草特有亚硝胺分子印迹微球的制备及应用
Preparation and application of molecularly imprinted polymers for selective adsorption of tobacco specific nitrosamines
摘要
Abstract
For selectively adsorbing tobacco-specific nitrosamines (TSNAs), molecularly imprinted polymers (MIPs) were prepared by precipitation polymerization with nicotinamide, methacrylic acid and divinyl benzene as reagents. The MIP structures were characterized and their adsorption performance was assessed. The results showed that the prepared MIPs with higher specific surface areas in NNK solutions possessed excellent adsorption efficiency (96%) and short adsorption time (30 min) for the target molecules. Furthermore, MIPs were used in an offline solid-phase extraction to selective extraction of TSNAs in tobacco leaves and the adsorption efficiency was about 100%, and the MIPs column could be reused. The standard recoveries of MIPs column for TSNAs ranged from 66% to 113%. The MIPs column was compared with online solid-phase extraction column to exhibit its potential application with the close recovery and intensity for online solid-phase extraction of TSNAs.关键词
烟草特有亚硝胺/分子印迹聚合物/沉淀聚合/固相萃取Key words
Tobacco-specific nitrosamine/Molecularly imprinted polymer/Precipitation polymerization/Solid-phase extraction分类
轻工纺织引用本文复制引用
郑晓曼,杨振东,白若石,张杰,张晨,周骏,徐同广..烟草特有亚硝胺分子印迹微球的制备及应用[J].烟草科技,2017,50(7):40-47,8.基金项目
中国烟草总公司科技重大专项项目" 降低卷烟烟气中TSNAs的综合技术及在'中南海'品牌的应用研究"[110201401024(JH02)]. （JH02）
