Abstract
Enrichments of emerging pollutants and drugs from various samples with complex matrices make it urgent and challenging to develop novel SPME coatings, and the flourishing materials with high enrichment capabilities provide good opportunities for it. This review summarizes the used materials for the fabrication of SPME coatings in the past five years, including carbon, polymer, metal organic frameworks (MOFs), covalent organic frameworks (COFs), ionic liquids (ILs), metal/metal oxide nanoparticles and silica. To obtain SPME coatings with excellent physical performance, anti-interference ability and high enrichment capability, suitable coating methods and supports are selected according to the properties of coating materials. In addition, the factors of coating materials and analytes influencing the enrichment effect are summarized and illustrated preliminarily, benefiting for further design of advanced coating materials with enhanced performance.
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