Liquid–liquid extraction of toluene from heptane by {[4bmpy][Tf2N]+[emim][CHF2CF2SO3]} ionic liquid mixed solvents

2013 ◽  
Vol 337 ◽  
pp. 47-52 ◽  
Author(s):  
Silvia García ◽  
Julián García ◽  
Marcos Larriba ◽  
Ana Casas ◽  
Francisco Rodríguez
Keyword(s):  
Ionic Liquid ◽  
Mixed Solvents ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction

scholarly journals Development of trace analysis for alkyl methanesulfonates in the delgocitinib drug substance using GC-FID and liquid–liquid extraction with ionic liquid

2020 ◽  
Vol 18 (1) ◽  
pp. 1020-1029
Author(s):  
Shinkichi Nomura ◽  
Yoshiharu Ito ◽  
Shigehiko Takegami ◽  
Tatsuya Kitade
Keyword(s):  
Ionic Liquid ◽  
Trace Analysis ◽  
Direct Injection ◽  
Liquid Extraction ◽  
Drug Substance ◽  
Flame Ionization ◽  
Liquid Liquid Extraction ◽  
Accuracy And Precision ◽  
Sensitivity And Selectivity ◽  
Chloride Water

AbstractAlkyl methanesulfonates are genotoxic impurities that should be limited to an intake of not more than 1.5 µg/day, as regulated by the International Council for Harmonization guideline M7. We herein report a trace analysis of methyl methanesulfonate (MMS), ethyl methanesulfonate (EMS), and isopropyl methanesulfonate (IPMS) in the delgocitinib drug substance using liquid–liquid extraction, with an ionic liquid as the sample-solving medium, and direct injection gas chromatography detected with a flame-ionization detector. The proposed method takes advantage of the fine solubility of ionic liquids toward the drug substance, the good extraction efficiency of alkyl methanesulfonates in liquid–liquid extraction using the Chem Elut cartridge with low-polar organic solvents, and the ability of alkyl methanesulfonates to concentrate in minimum amounts of organic solvent, resulting in excellent sensitivity and selectivity. Specifically, for the preparation of the sample solution, a mixture of 1-butyl-3-methylimidazolium chloride, water, and acetonitrile was used as the sample-solving media, extracted with diethyl ether, and the eluent was concentrated to 1 mL. The method showed good linearity, accuracy, and precision from 1 to 5 ppm, and the limits of detection of MMS, EMS, and IPMS were 0.1, 0.05, and 0.05 ppm, respectively.

Ionic Liquid-Type Crown Ether as a Novel Medium for a Liquid/Liquid Extraction of Radioactive Metal Ion85Sr2+.

ChemInform ◽  
2007 ◽  
Vol 38 (6) ◽  
Author(s):  
Sang Hyun Park ◽  
Dorjnamjin Demberelnyamba ◽  
Seung Ho Jang ◽  
Myung Woo Byun
Keyword(s):  
Ionic Liquid ◽  
Crown Ether ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction ◽  
Liquid Type

Ionic Liquid–Liquid Extraction and Supported Liquid Membrane Analysis of Lipophilic Wood Extractives from Dissolving-Grade Pulp

2012 ◽  
Vol 75 (9-10) ◽  
pp. 513-520 ◽  
Author(s):  
Kessy F. Kilulya ◽  
Titus A. M. Msagati ◽  
Bhekie B. Mamba ◽  
J. Catherine Ngila ◽  
Tamara Bush
Keyword(s):  
Ionic Liquid ◽  
Liquid Membrane ◽  
Liquid Extraction ◽  
Supported Liquid Membrane ◽  
Wood Extractives ◽  
Liquid Liquid Extraction

Extraction behaviour and mechanism of Pt(iv) and Pd(ii) by liquid–liquid extraction with an ionic liquid [HBBIm]Br

2017 ◽  
Vol 46 (22) ◽  
pp. 7210-7218 ◽  
Author(s):  
Wenhui Liu ◽  
Qi Wang ◽  
Yan Zheng ◽  
Shubin Wang ◽  
Yan Yan ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
High Purity ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction ◽  
Extraction Behaviour ◽  
One Step

In this study, a method of one-step separation and recycling of high purity Pd(ii) and Pt(iv) using an ionic liquid, 1-butyl-3-benzimidazolium bromate ([HBBIm]Br), was investigated.

Quaternary ammonium based task specific ionic liquid for the efficient and selective extraction of neptunium

2017 ◽  
Vol 105 (9) ◽  
Author(s):  
Nishesh Kumar Gupta ◽  
Arijit Sengupta ◽  
Sujoy Biswas
Keyword(s):  
Ionic Liquid ◽  
Cation Exchange ◽  
Quaternary Ammonium ◽  
Acidic Solution ◽  
Selective Extraction ◽  
Liquid Extraction ◽  
Exchange Mechanism ◽  
Liquid Liquid Extraction ◽  
Aqueous Acidic Solution ◽  
Task Specific Ionic Liquid

Abstract:Liquid–liquid extraction of neptunium from aqueous acidic solution using quaternary ammonium based task specific ionic liquid (TSIL) was investigated. The extraction of Np was predominated by the ‘cation exchange’ mechanism via [NpO

scholarly journals Separation of cobalt and nickel using a thermomorphic ionic-liquid-based aqueous biphasic system

2015 ◽  
Vol 51 (88) ◽  
pp. 15932-15935 ◽  
Author(s):  
Bieke Onghena ◽  
Tomas Opsomer ◽  
Koen Binnemans
Keyword(s):  
Ionic Liquid ◽  
Liquid Extraction ◽  
Biphasic System ◽  
Homogeneous Liquid ◽  
Aqueous Biphasic System ◽  
Liquid Liquid Extraction ◽  
System P ◽  
Aqueous Biphasic ◽  
Cobalt And Nickel

A [P44414][Cl]–NaCl–H2O IL-based aqueous biphasic system shows promising results for the separation of cobalt(ii) and nickel(ii) by homogeneous liquid–liquid extraction.

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