Due to the fact that green analytical chemistry is of high importance, the past two decades have witnessed a rapid growth in the sample preparation area with special emphasis on simplification, miniaturization and automation of extraction procedures. In addition, to accelerate the extraction processes and to improve the separation of analytes, several enhanced parameters are applied. These factors include, ultrasounds, microwaves, air, electrical potential and addition of surfactants. Application of these parameters into extraction techniques such like DLLME, EME, LPME bring many advantages including higher extraction efficiency, lower LOD and LOQ parameters, reduced environmental hazards, and consumption of less extracting solvent. Therefore, such techniques like ultrasound-assisted dispersive liquid-liquid microextraction, electro-enhanced hollow fiber membrane liquid phase microextraction, vortex-assisted matrix solid–liquid dispersive microextraction and others are extensively used in analytical practice.

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支持微萃取过程的其他因素的应用

由于绿色分析化学非常重要，在过去的二十年中，样品制备领域实现了快速增长，特别注重提取过程的简化，小型化和自动化。另外，为了加快提取过程并改善分析物的分离，应用了一些增强的参数。这些因素包括超声波，微波，空气，电势和​​表面活性剂的添加。将这些参数应用到诸如DLLME，EME，LPME之类的萃取技术中可带来许多优势，包括更高的萃取效率，更低的LOD和LOQ参数，减少的环境危害以及消耗更少的萃取溶剂。因此，诸如超声辅助分散液-液微萃取之类的技术，