[(bmpyr)2{Zn(OC6H3(NO2)2)4}]: Influence of an Ionic Liquid on Liquid/Liquid Extraction of Metal Ions in a Biphasic System

2007 ◽  
Vol 633 (9) ◽  
pp. 1490-1492 ◽  
Author(s):  
Nina v. Prondzinski ◽  
Arash Babai ◽  
Anja-Verena Mudring ◽  
Klaus Merz
Keyword(s):  
Ionic Liquid ◽  
Metal Ions ◽  
Liquid Extraction ◽  
Biphasic System ◽  
Liquid Liquid Extraction

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.

scholarly journals Application of ionic liquid based on Aliquat 336 and D2EHPA in the extraction of transition metals

2022 ◽  
Vol 1212 (1) ◽  
pp. 012021
Author(s):  
M I Fedorova ◽  
A V Levina
Keyword(s):  
Ionic Liquid ◽  
Transition Metal ◽  
Metal Ions ◽  
Transition Metal Ions ◽  
Liquid Extraction ◽  
Phase System ◽  
Aliquat 336 ◽  
Polypropylene Glycol ◽  
Two Phase ◽  
Liquid Liquid Extraction

Abstract To date, there are a number of methods for selective extraction of transition metal ions based on liquid-liquid extraction. One of the most interesting methods of metal ions extraction is liquid-liquid extraction with application of ionic liquids based on quaternary ammonium bases and organic acid residues, in particular, organophosphorus, diluted with organic solvent (toluene, xylene, kerosene, etc.). However, using of organic solvents does not correspond to the modern tendencies of harmful effects on the environment reducing. Thus, we propose to use Aliquat 336 and D2EHPA-based ionic liquid for extraction of transition metal ions in ecologically safe aqueous two-phase system based on polypropylene glycol 425 and sodium chloride. Di(2-ethylhexyl) phosphate trioctylmethylammonium has been shown to yield more than 80% Fe(III) and Y(III) ions.

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.

scholarly journals Liquid-Liquid Extraction of Metal Ions with a Cyclic Ligand Calixarene Carboxyl Derivative.

1998 ◽  
Vol 14 (3) ◽  
pp. 501-506 ◽  
Author(s):  
Takahiko KAKOI ◽  
Toshikazu TOH ◽  
Fukiko KUBOTA ◽  
Masahiro GOTO ◽  
Seiji SHINKAI ◽  
...  
Keyword(s):  
Metal Ions ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction ◽  
Carboxyl Derivative
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