Pressurized liquid extraction of organic contaminants in environmental and food samples
Yolanda Jiménez Soriano, V. Andreu, Yolanda Picó
Abstract
Pressurized liquid extraction (PLE) is an automated technique for extracting compounds, including organic contaminants that are strongly bind to the matrix. It provides advantages such as reduced extraction time, decreased solvent and energy consumption, simultaneous multiple extractions, and concurrent clean-up capability. This review presents an updated overview of the most relevant analytical methods and applications, focusing on the PLE extraction of contaminants in environmental and food matrices. It encompasses developments proposed since 2019, building upon the previous revision published in that year. We also address recent advancements and emerging technological trends, including the development of selective PLE (SPLE), and the introduction of sequential sample processing systems as most relevant. In general, PLE demonstrates substantial potential as a viable option for the analysis of organic contaminants in complex matrices, making it a promising and greener choice for environmental and food applications.