固相微萃取技术在环境监测分析中的应用进展

样品前处理是整个样品分析过程中的关键一环,其目的在于减少杂质对待测物的干扰及对目标物进行富集。固相微萃取技术是集采样、萃取、富集、进样于一体的样品前处理新技术。近年来,固相微萃取技术在环境污染物监测分析领域得到了广泛应用,该文章系统地综述了固相微萃取技术在不同环境基质(水体、大气、土壤及沉积物)预处理的方法,比较了不同类型涂层材料(如纳米材料、离子液体等)与装置形式(如内部冷却固相微萃取、箭形固相微萃取等)的优缺点及应用范围。针对现阶段固相微萃取技术应用于不同环境基质中存在的问题和不足,提出进一步研究的方向。

Application of Solid Phase Microextraction Technique in Environmental Analysis and Monitoring

Sample pretreatment is a critical step in the whole analytical procedure. The purpose of this process is to reduce the interference of impurities on samples and to concentrate the target objects. Solid phase microextraction is an innovative sample pretreatment technology that integrates sampling, extraction, enrichment and injection. In recent years, solid phase microextraction has been widely applied in environmental pollutant monitoring and analysis. In this paper, the methods of solid phase microextraction pretreatment in different environmental substrates such as water, atmosphere, soil, and sediment are summarized. The advantages, disadvantages, and the applicability of coating materials (nanomaterials, ionic liquids, etc.) and device forms (cold fiber solid phase microextraction, arrow solid phase microextraction, etc.) are also critically evaluated. Further research directions are proposed towards problems and deficiencies in the application of solid phase microextraction in different environmental matrices.