Separation of monosaccharides by solid‐phase extraction with ionic liquid‐modified microporous polymers

Abstract

Ionic liquid-modified porous polymers with large surface area and large amount of functional groups were developed and used in SPE to separate four monosaccharides. Adsorption isotherm showed that the sorbent with amino ionic liquid groups had the highest interaction with the target compounds. The mobile phase of acetonitrile/water 85:15 and 73:30 v/v can successfully separate the monosaccharides. The sorbent produced reproducible results and performed stably, demonstrating its potential applicability in the separation of extract from natural plant.

Microwave-assisted synthesis of ionic liquid-modified silica as a sorbent for the solid-phase extraction of phenolic compounds from water

“…13 Immobilized ILs can be synthesized by physical absorption or chemical reaction. 14 Typical substrates for IL immobilization include silica, 15,16 polymeric microspheres, 17,18 carbon nanotubes, 19 and magnetic nanoparticles. [20][21][22] IL-supported materials are used in analytical chemistry, especially for solid-phase extraction (SPE) [23][24][25] or solid-phase micro-extraction.…”

Application of anion‐exchange imidazolium silica for the multiphase dispersive extraction of phenolic acids

“…Ionic liquids (ILs), which consist of organic cations associated with inorganic or organic anions, have attracted considerable interest in chemistry because of their negligible vapor pressure, good thermal stability, nonflammability, high ionic conductivity, and miscibility with water and organic solvents . They interact with the target compounds through anion exchange, hydrogen bonding, π–π, or hydrophobic interactions, and are used in analytical chemistry for both extraction and separation . These compounds have been modified on different materials for applications as stationary phases or sorbents.…”

Polymethacrylate microparticles covalently functionalized with an ionic liquid for solid-phase extraction of fluoroquinolone antibiotics

“…2) at 1459 cm −1 was attributable to imidazole groups immobilizing on the polymers and peaks at 1542 and 1565 cm − 1 corresponded to C-H vibration of the imidazole ring [6]. In addition, the wavelength from 3000 to 3700 cm −1 indicated the intensity of the nitrogen fraction (N-H) [34], while 2880-3000 cm −1 was the characteristic region for C-H absorption [35]. These results indicated that the ionic liquid ([Amim][Br]) was successfully incorporated into the polymers.…”