6533b7dcfe1ef96bd127297d

RESEARCH PRODUCT

Extraction of glyphosate by a supported liquid membrane technique.

Piotr WieczorekPaweł Dżygiel

subject

GlycineEtherAliquat 336BiochemistryChlorideAnalytical Chemistrysupported liquid membraneschemistry.chemical_compoundextraction methodsglyphosateMass transferPhase (matter)medicineChromatographyMembranesClinical Laboratory TechniquesHerbicidesOrganic ChemistryExtraction (chemistry)Osmolar ConcentrationElectrophoresis CapillaryGeneral MedicinepesticidesHydrogen-Ion ConcentrationAcceptorQuaternary Ammonium CompoundsMembranechemistrymedicine.drug

description

The possible application of the supported liquid membrane (SLM) technique for the extraction of glyphosate is presented. For the extraction of this compound the SLM system has been applied with utilisation of Aliquat 336 as a cationic carrier incorporated into the membrane phase. The extraction efficiency of glyphosate [N-(phosphonomethyl)glycine] is dependent on the donor phase pH, carrier concentration in the organic phase and NaCl concentration in the acceptor phase. The optimal extraction conditions are: donor phase pH>11, acceptor phase of 2 M NaCl solution and the organic phase composed of 20% (w/w) Aliquot 336 solution in di-hexyl ether. Counter-coupled transport of chloride anions from the acceptor phase to the donor phase is a driving force of the mass transfer in this system.

yearjournalcountryeditionlanguage
2000-09-14Journal of chromatography. A
10.1016/s0021-9673(00)00120-5https://pubmed.ncbi.nlm.nih.gov/10985540