Advances in ionic liquids and deep eutectic solvents-based liquid phase microextraction of metals for sample preparation in Environmental Analytical Chemistry

Liquid phase micro-extraction (LPME) of metals has showed its potential for sample preparation in environmental analysis. In particular, the incorporation ionic liquids to LPME (IL-LPME) gotten increasing interest due their unique properties as organic salts liquid at room temperature. last years, IL-LPME evolved more efficient and selective extraction methods thanks development task specific liquids, deep eutectic solvents. ILs have been implemented main modalities: SDME, DLLME HFLPME, resulting new versions these techniques. this review we analyzed discussed latest developments done metals, advantages limitations, well fields future development.