scholarly journals Extraction in cholinium-based magnetic ionic liquid aqueous two-phase system for the determination of berberine hydrochloride in Rhizoma coptidis

RSC Advances ◽  
2018 ◽  
Vol 8 (44) ◽  
pp. 25201-25209 ◽  
Author(s):  
Li-rong Nie ◽  
Hang Song ◽  
Alula Yohannes ◽  
Siwei Liang ◽  
Shun Yao
Keyword(s):  
Ionic Liquid ◽  
Inorganic Salts ◽  
Phase System ◽  
Two Phase ◽  
Magnetic Ionic Liquids ◽  
Aqueous Two Phase Systems ◽  
Magnetic Ionic Liquid ◽  
Phase Systems ◽  
First Time

Five cholinium type organic magnetic ionic liquids have been applied in ionic liquid-based aqueous two-phase systems by mixing with a series of inorganic salts, which is reported to extract berberine in quantitative analysis for the first time.

Synthesis, magnetism, aqueous-two phase formation and physical properties of novel guanidinium-based magnetic ionic liquids

RSC Advances ◽  
2016 ◽  
Vol 6 (58) ◽  
pp. 52898-52904 ◽  
Author(s):  
Tian Yao ◽  
Shun Yao ◽  
Dan Tang ◽  
Long Jing ◽  
Daocai Wang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Physical Properties ◽  
Phase Formation ◽  
Two Phase ◽  
Magnetic Ionic Liquids ◽  
Aqueous Two Phase Systems ◽  
Magnetic Ionic Liquid ◽  
Phase Systems

A novel magnetic ionic liquid aqueous two-phase systems (MILATPs) has been developed, based on a series of novelly synthesized guanidinium-based magnetic ionic liquids.

Extraction and stability of selected proteins in ionic liquid based aqueous two phase systems

2014 ◽  
Vol 16 (5) ◽  
pp. 2670-2679 ◽  
Author(s):  
Rupali K. Desai ◽  
Mathieu Streefland ◽  
Rene H. Wijffels ◽  
Michel H. M. Eppink
Keyword(s):  
Ionic Liquid ◽  
Aqueous Solutions ◽  
Phase System ◽  
Two Phase ◽  
Aqueous Two Phase System ◽  
Aqueous Two Phase Systems ◽  
Phase Systems ◽  
The Stability

This article discusses the extraction of Rubisco in an ionic liquid (IL) based aqueous two phase system and the stability of proteins in aqueous solutions of IL.

Influence of process variables on extraction of Cefalexin in a novel biocompatible ionic liquid based-aqueous two phase system

2015 ◽  
Vol 17 (1) ◽  
pp. 655-669 ◽  
Author(s):  
Shiva Abdolrahimi ◽  
Bahram Nasernejad ◽  
Gholamreza Pazuki
Keyword(s):  
Ionic Liquid ◽  
Phase System ◽  
Process Variables ◽  
Organic Salts ◽  
Two Phase ◽  
Salting Out ◽  
Aqueous Two Phase System ◽  
System P ◽  
Aqueous Two Phase Systems ◽  
Phase Systems

Despite the fact that ionic liquid-based aqueous two phase systems (ATPSs) have been widely studied for extraction purposes, the adequacy of biodegradable organic salts as salting out agents has been left unexploited.

scholarly journals Partitioning Behavior of Papain in Ionic Liquids-Based Aqueous Two-Phase Systems

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Zhiwen Bai ◽  
Yanhong Chao ◽  
Meiling Zhang ◽  
Changri Han ◽  
Wenshuai Zhu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Extraction Efficiency ◽  
Phase System ◽  
Optimum Conditions ◽  
Two Phase ◽  
Rich Phase ◽  
Aqueous Two Phase Systems ◽  
Phase Systems ◽  
Partitioning Behavior

This paper attempts to study and optimize the affinity partitioning conditions of papain in an aqueous two-phase system (ATPS). The effect of the amount of ionic liquids (ILs), the concentration of K2HPO4, temperature, pH, and the volume of papain solution were discussed concretely. The optimum conditions were determined as ionic liquid was 1.4 g and K2HPO4was 1.4 g, the extraction efficiency of papain could reach 98.33% with pH unadjusted. The temperature and the pH of the solution are major parameters that influence the partitioning of protein in ILs-based ATPSs. The partition of papain to the IL-rich phase was enhanced by increasing the amount of ILs, the concentration of K2HPO4, and temperature, especially at its isoelectric point.

Microscopic evaluation of aqueous two-phase system emulsion characteristics enables rapid determination of critical polymer concentrations for solution micropatterning

The Analyst ◽  
2017 ◽  
Vol 142 (11) ◽  
pp. 1938-1945 ◽  
Author(s):  
Mackenzie Ruthven ◽  
Kristin Robin Ko ◽  
Rishima Agarwal ◽  
John P. Frampton
Keyword(s):  
Phase Transitions ◽  
Simple Technique ◽  
Rapid Determination ◽  
Phase System ◽  
Two Phase ◽  
Aqueous Two Phase System ◽  
Microscopic Evaluation ◽  
Aqueous Two Phase Systems ◽  
Phase Systems

A simple technique is presented to identify phase-transitions in polymeric aqueous two-phase systems.

Extraction of Gatifloxacin in Water by Use of Ionic Liquid–Salt Aqueous Two-Phase System

2011 ◽  
Vol 356-360 ◽  
pp. 195-198
Author(s):  
Wen Yan Zhao ◽  
Jing Zhang ◽  
Xiang Ge ◽  
Yue Lu ◽  
Rui Sheng Hu
Keyword(s):  
Ionic Liquid ◽  
Ph Value ◽  
Great Influence ◽  
Sample Pretreatment ◽  
Phase System ◽  
Two Phase ◽  
Liquid Salt ◽  
Double Beam ◽  
Aqueous Two Phase Systems ◽  
Phase Systems

An ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate( [BMIM] BF4) / salt aqueous two-phase systems (ATPS) was presented as a simple, rapid and effective sample pretreatment technique coupled with double-beam UV-Vis spectrophotometer for analysis of gatifloxacin in water. For the purpose to choose optimal conditions, various factors were considered systematically, and the results indicated that the pH value, the salt-out ability of salt and the amount of [BMIM] BF4 had great influence on phase separation and extraction. Under the optimal condition, gatifloxacin in different concentration were enriched and determined, the recovery was 87.3–91.5%.

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