6533b82cfe1ef96bd1290078
RESEARCH PRODUCT
Enrichment of amino acids by supported liquid membrane extraction using Aliquat 336 as a carrier
Piotr WieczorekJan ÅKe JönssonLennart MathiassonPaweł Dżygielsubject
amino acidsChromatographyAqueous solutionBiochemistry (medical)Clinical BiochemistryExtraction (chemistry)Aliquat 336Aliquat 336BiochemistryAcceptorAnalytical Chemistrychemistry.chemical_compoundMembranechemistryLiquid–liquid extractionPhase (matter)ElectrochemistryextractionAmmonium chloridesupported liquid membraneSpectroscopydescription
Abstract The possible application of Aliquat 336 (trioctylmethyl ammonium chloride) as a carrier for liquid membrane extraction of amino acids was investigated. The extraction is performed from an aqueous donor phase with pH > 11 to an acceptor phase containing a salt solution through a supported liquid membrane with Aliquat 336 as a carrier in the membrane to facilitate amino acid transport. Counter-coupled transport of chloride anions from the acceptor phase to the donor phase is the driving force of the mass transfer in this system. The extraction efficiency depends on the donor phase pH, the carrier concentration in the liquid membrane, the composition of the acceptor phase and the hydrophobicity of the amino acid. The observed stability of such liquid membranes supported on commercial porous-PTFE membranes with a hydrophobic solvent is more than 20 days.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-05-01 | Analytical Letters |