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Effect of tetraalkylammonium cations on amperometric detection of heparin at a polarized water/ionic liquid membrane interface

Publikace na 3. lékařská fakulta |
2013

Tento text není v aktuálním jazyce dostupný. Zobrazuje se verze "en".Abstrakt

Amperometric detection of heparin, which combines the spontaneous extraction of heparin into the ionic liquid (IL) membrane with its potential-driven stripping, is studied using IL composed of the tetradodecylammonium (TDDA+) cation and tetrakis[3,5-bis(trifluoro-methyl)phenyl]borate (TFPB-). In contrast to the IL membrane composed of tridodecylmethylammonium cation (TDMA+) and TFPB-, no promotion effect of the tetrapentylammonium cation (TPeA+) is observed.

The absence of the effect is ascribed to a much weaker ion association between heparin and TDDA+, which does not support the accumulation of heparin into the IL phase.