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J Chromatogr A

Title:		Applications of ionic liquids in biphasic separation: Aqueous biphasic systems and liquid-liquid equilibria
Author(s):		Shukla SK; Pandey S; Pandey S;
Address:		"Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India. Department of Science and Technology, Ministry of Science and Technology, Technology Bhawan, New Mehrauli Road, New Delhi 110016, India. Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India. Electronic address: chempandey@gmail.com"
Journal Title:		J Chromatogr A
Year:		2018
Volume:		20171010
Issue:
Page Number:		44 - 61
DOI:		10.1016/j.chroma.2017.10.019
ISSN/ISBN:		1873-3778 (Electronic) 0021-9673 (Linking)
Abstract:		"Ionic liquids (ILs) have been receiving much attention in many fields of analytical chemistry because of their various interesting properties which distinguish them from volatile organic compounds. They offer both directional and non-directional forces towards a solute molecule and therefore act as excellent solvents for a wide range of polar and non-polar compounds. Because of the presence of various possible interactions, ILs easily undergo biphasic separation with water and other less polar/non-polar organic solvents. Their ability to create biphasic splitting makes them a promising candidate for liquid-liquid separation processes, such as aqueous biphasic systems and liquid-liquid equilibria. Various aspects of ILs in these separation methods are discussed in view of the origin of physical forces responsible for the biphasic interactions, the effect of structural components, temperature, pressure, pH and additives. The specific advantages of using ILs in aqueous biphasic systems and liquid-liquid equilibria in binary and ternary systems are discussed with a view to defining their future role in separation processes by giving major emphasis on developing non-toxic ILs with physical and solution properties tailored to the needs of specific sample preparation techniques"
Keywords:		Hydrogen-Ion Concentration Ionic Liquids/*chemistry Liquid-Liquid Extraction/*methods Metals/chemistry Organic Chemicals/chemistry Salts/chemistry Solvents/*chemistry Temperature Water/chemistry Aqueous biphasic systems Ionic liquids Liquid-liquid equilib;
Notes:		"MedlineShukla, Shashi Kant Pandey, Shubha Pandey, Siddharth eng Review Netherlands 2017/10/22 J Chromatogr A. 2018 Jul 20; 1559:44-61. doi: 10.1016/j.chroma.2017.10.019. Epub 2017 Oct 10"