Jump to main content
Jump to site search

Issue 22, 2015
Previous Article Next Article

Hydrophobic–hydrophilic ionic liquids for the extraction and determination of metal ions with water-soluble reagents

Author affiliations

Abstract

Tetraoctylammonium N-lauroyl sarcosinate and trioctylmethylammonium salicylate are water-immiscible solvents which contain a large amount of dissolved water and may be called “hydrophobic–hydrophilic” ionic liquids (HHILs). We found that several representative water-soluble reagents – Arsenazo I, Arsenazo III, Alizarin Red S, Nitroso-R salt, and Xylenol Orange – are strongly partitioned into the HHIL phase from aqueous solutions over a wide pH range. Metal ions that form complexes with these reagents are extracted efficiently from aqueous solutions. We studied the details of extraction in two representative systems, Sc(III) with Arsenazo III and Co(II) with Nitroso-R salt. A sensitive, selective, and rapid procedure for the extraction-photometric determination of cobalt with HHILs and Nitroso-R salt has been developed.

Graphical abstract: Hydrophobic–hydrophilic ionic liquids for the extraction and determination of metal ions with water-soluble reagents

Back to tab navigation

Supplementary files

Publication details

The article was received on 22 Jul 2015, accepted on 11 Oct 2015 and first published on 13 Oct 2015


Article type: Paper
DOI: 10.1039/C5AY01914A
Author version available: Download Author version (PDF)
Citation: Anal. Methods, 2015,7, 9629-9635
  •   Request permissions

    Hydrophobic–hydrophilic ionic liquids for the extraction and determination of metal ions with water-soluble reagents

    S. V. Smirnova, T. O. Samarina and I. V. Pletnev, Anal. Methods, 2015, 7, 9629
    DOI: 10.1039/C5AY01914A

Search articles by author

Spotlight

Advertisements