分子印迹微萃取技术的研究进展

微萃取技术是一种将分析物高效萃取富集于微体积的聚合物或有机溶剂中,集采样、萃取、浓缩、进样于一体的无(少)溶剂、易于与其他技术在线联用的样品前处理方法。分子印迹聚合物是一种具有强大分子识别功能的材料,具有高效的选择特异性,可从复杂样品中选择性分离富集目标分析物,在微萃取技术中得到了广泛的应用。本文综述了近年来分子印迹微萃取技术的研究进展,包括分子印迹固相微萃取、分子印迹搅拌棒吸附萃取、分子印迹磁性微球萃取等微萃取技术。共引用文献75篇。

Development of molecularly imprinted microextraction techniques

Microextraction techniques can extract efficiently the analytes from a sample matrix to the polymers or organic solvents of microvolume, and integrate sampling, extraction, concentration and injection into one single step. They have the advantages of simple, time-efficient and solvent-free. They have been successfully coupled with a variety of analytical tools, such as gas chromatography and high performance liquid chromatography. Molecularly imprinted polymers have specific recognition ability. They can separate and enrich analytes from complicated matrix with high selectivity, and they have great application prospects in complicated sample preparation. This review summarizes the progress in the molecularly imprinted microextraction techniques, including molecularly imprinted-solid phase microextraction, molecularly imprinted-stir bar adsorptive extraction, magnetic molecularly imprinted beads extraction, etc. A total of 75 references are cited.