Abstract

As growing concerns on green, cost-effective, and time-saving chemistry analysis methods, deep eutectic solvents (DESs) are considered to be promising green alternatives to conventional solvents in dispersive liquid–liquid microextraction (DLLME) of trace level chemical contaminants in food and water, due to their biodegradability, low cost, and simple preparation. In the past few years, numerous innovative researches have focused on preconcentration of trace level chemical contaminants using DESs as extractant. In this context, this review aims to summarize the updated state-of-the-art effort dedicated to preconcentration of trace level chemical contaminants in food and water sample using DESs as extractants in DLLME. Furthermore, the major impact factors affecting the preconcentration efficiency and process mechanisms are thoroughly analyzed and discussed. Finally, prospects and challenges in application of DESs as solvents in DLLME to enrich trace level chemical contaminants are extensively elucidated and critically reviewed.

摘要

随着人们越来越关注绿色、经济和省时的化学分析方法，深共熔溶剂 (DES) 被认为是食品中痕量化学污染物分散液-液微萃取 (DLLME) 中传统溶剂的有前途的绿色替代品和水，由于它们可生物降解，成本低，制备简单。在过去的几年里，许多创新研究都集中在使用 DES 作为萃取剂对痕量化学污染物进行预浓缩。在此背景下，本综述旨在总结最新的最新技术成果，专门用于在 DLLME 中使用 DES 作为萃取剂对食品和水样品中的痕量化学污染物进行预浓缩。此外，对影响预浓缩效率和工艺机理的主要影响因素进行了深入分析和讨论。最后，广泛阐明和批判性地回顾了 DES 作为 DLLME 中的溶剂以富集痕量化学污染物的前景和挑战。