Ionic liquid-modified luffa sponge fibers for dispersive solid-phase extraction of benzoylurea insecticides from water and tea beverage samples

Abstract

Ionic liquid-modified luffa sponge fibers were used as efficient and environmentally friendly sorbents in the dispersive solid-phase extraction method.

TiO2@MOF-919(Fe–Cu) as a sorbent for the extraction of benzoylurea pesticides from irrigation water and fruit juices

“…Then, the extraction column was reused 10 times without any obvious decrease in the rate of recovery. Finally, a comparison with other sample pretreatment methods for BUs in the literature is shown in Table S4 † 1,27,28 . We can achieve efficient and reliable analysis using the present material with a simple preparation method.…”

Sponges and Sponge-Like Materials in Sample Preparation: A Journey from Past to Present and into the Future

“…The analytical method developed exhibited high accuracy as evidenced by analyzing certified reference materials (certified value: 300.00 ± 0.5, found value: 299.57 ± 0.006). In the final report, the ionic liquid 1-hexadecyl-3-methylimidazolium bromide was deposited on Luffa sponges by physisorption [80]. The modification was carried out to render Luffa sponges suitable for the determination of four benzoylurea insecticides in water and tea beverage samples.…”

A systematic comparison of the extraction and adsorption of theophylline by new amino acid ester-based ionic liquids

“…To enable easier solid–liquid separation and IL recycling, researchers have developed some physical and chemical approaches for immobilizing these green solvents and using them as selective sorbents. 20,21 Fe 3 O 4 -Centered magnetic molecularly imprinted polymers modified with a 1-methylimidozole-based IL were prepared for the rapid purification of alkaloids, 22 and silica-confined imidazolium ionic liquids were also applied in a two-step alkaloid separation process, with a highest recovery of 93.4%. 23 Such enrichment studies generally aim to allow subsequent quantitative analysis, and similar techniques for the preparation/removal of theophylline are urgently needed.…”