Enhanced separation performance of aqueous biphasic systems formed by carbohydrates and tetraalkylphosphonium- or tetraalkylammonium-based ionic liquids

authors	Quental, MV; Pereira, MM; Ferreira, AM; Pedro, SN; Shahriari, S; Mohamadou, A; Coutinho, JAP; Freire, MG
nationality	International
journal	GREEN CHEMISTRY
keywords	SOLID-PHASE EXTRACTION; 2-PHASE SYSTEM; PHENOLIC-ACIDS; PROTEINS; WATER; GLYCINE; PARTITION; BEHAVIOR; SALTS
abstract	Aiming at designing effective and sustainable separation processes, herein we propose the use of carbohydrates combined with tetraalkylphosphonium- or tetraalkylammonium-based ionic liquids (ILs) to form aqueous biphasic systems (ABS). The formation of ABS composed of non-aromatic and non-fluorinated ILs with carbohydrates is shown here for the first time. These novel systems are competitive extraction platforms when compared against more conventional ABS formed by ILs and salts or fluorinated ILs and carbohydrates. Finally, it is shown that these systems can be efficiently recovered and reused, without losses in their separation performance.
publisher	ROYAL SOC CHEMISTRY
issn	1463-9262
year published	2018
volume	20
issue	13
beginning page	2978
ending page	2983
digital object identifier (doi)	10.1039/c8gc00622a
web of science category	Chemistry, Multidisciplinary; Green & Sustainable Science & Technology
subject category	Chemistry; Science & Technology - Other Topics
unique article identifier	WOS:000437187500006