TASK SPECIFIC IONIC LIQUIDS FOR SOLVENT BAR MICROEXTRACTION OF HEAVY METALS
- Author(s)
- José Antonio López-López, Philip Pirkwieser, Raphlin Mirabeau Leyma, Franz Jirsa, C. Moreno
- Abstract
During the last years the interest in the application of ionic liquids (ILs) in micro-extraction methods has gained increasing attention due to their particular physico-chemical properties. Among the benefits for liquid micro-extraction are their non-volatile nature and their high viscosity, which overcomes instability problems of conventional organic solvents (Zhang et al. 2013). Ionic liquids have been used in liquid micro-extraction of toxic metals. The most recent application is in hollow fiber liquid phase micro-extraction (HFLPME). Despite the interest in HFLPME, it presents some limitations for routine and field use caused by the need of a specific support for the fiber. However, a configuration of solvent bar micro-extraction (SBME) recently appeared to overcome this drawback by thermally sealing both ends of the fiber (López-López et al. 2015).
Tuning the composition of the cation and the anion, including functional groups that act as ligands in their structure, improves the efficiency of ILs for extraction of metals from water samples. These types of ILs are known as “task specific” (TSILs), because they can be considered as design solvents (Sawant et al., 2011).- Organisation(s)
- Department of Inorganic Chemistry
- External organisation(s)
- University of Johannesburg (UJ), University of Cádiz
- Pages
- 707 - 708
- Publication date
- 09-2016
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 104003 Inorganic chemistry, 104023 Environmental chemistry
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/ca585122-43f6-450e-8e4d-b4746b476aa0