Cucurbit(n)uril-functionalized magnetic composite for the dispersive solid-phase extraction of perfluoroalkyl and polyfluoroalkyl substances in environmental samples with determination by ultra-high performance liquid chromatography coupled to Orbitrap high-resolution mass spectrometry

A multi-site recognition molecularly imprinted solid-phase microextraction fiber for selective enrichment of three cross-class environmental endocrine disruptors

“…[11][12][13][14] Here, a variety of sample pretreatment techniques have been reported in complex sample pretreatment such as solid-phase extraction, 15 solid-phase microextraction (SPME), [16][17][18] stir bar sorptive extraction, 19,20 QuEChERS, 21,22 and dispersive solidphase extraction. 23,24 We note that SPME is widely used as a sample pretreatment step before chromatographic separation owing to its advantages including low-organic solvent consumption, user-friendly operation, and easy automation. In particular, there is a problem of limited selective adsorption in the SPME technique when dealing with actual samples containing a wide variety of contaminants; molecularly imprinted polymers (MIPs) with specific recognition have been introduced as an adsorbent to improve selectivity.…”