Temperature-switchable deep eutectic solvents for selective separation of aromatic amino acids in water

Novel deep eutectic solvent-based liquid phase microextraction for the extraction of estrogenic compounds from environmental samples

“…Vertex, ultrasonic, pH and temperature changes are methods that have replaced disperser solvents. [33][34][35] Also, lighter-than-water organic solvents (less toxic and cheaper), ionic liquids, and deep eutectic solvents have replaced toxic organic solvents as extractants. [36][37][38][39] In recent years deep eutectic solvents (DESs) have rapidly emerged as a new type of green and sustainable solvent.…”

“…Limited studies have been reported in this area. 33,34 This research aims to develop a fast, simple, and environmentally friendly pretreatment method called pH-switchable DES based liquid phase microextraction (DES-LPME) for the extraction/preconcentration of strogenic compounds in environmental water and wastewater samples combined with GC-MS. A pH-switchable DES was synthesized using l-menthol as HBA and (1S)-(+)-camphor-10-sulfonic acid (CSA) as HBD, and used as a green extraction solvent. By adjusting the pH of the solution, the unique behaviour of the DES in the phase transition and extraction of the desired analytes was investigated.…”

“…Vertex, ultrasonic, pH and temperature changes are methods that have replaced disperser solvents. 33–35 Also, lighter-than-water organic solvents (less toxic and cheaper), ionic liquids, and deep eutectic solvents have replaced toxic organic solvents as extractants. 36–39…”

Extraction of parabens from personal care products using a pH-responsive hydrophobic deep eutectic solvent: experimental design and COSMO-RS evaluations

“…The phase transition can be achieved upon exposure to a trigger such as carbon dioxide, acids, bases, and changing the temperature. [19][20][21][22] In other words, by introducing a trigger, the DES forms a single phase with water that translates into the transfer of the target compounds into the DES. Then, the DES carrying the analytes can be switched back to its original form by adding a switching trigger.…”

Room-temperature dissolution of PbI2 by a PEGylated deep eutectic solvent with high efficiency

“…[22][23][24][25] Polyethylene glycol-based DESs (PEGylated DESs) possess the favorable properties of low cost, high biocompatibility, low corrosivity and low toxicity. 26 They have been used in separation/extraction 19,[27][28][29][30][31] and catalysis. 32 Here, a PEGylated DES composed of PEG200 and thiourea with a molar ratio of 2 : 1 (Fig.…”