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Supported liquid membrane extraction of glyphosate metabolites
Author(s) -
Dżygiel Paweł,
Wieczorek Piotr
Publication year - 2001
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/1615-9314(20010801)24:7<561::aid-jssc561>3.0.co;2-z
Subject(s) - aliquat 336 , chemistry , extraction (chemistry) , membrane , cationic polymerization , chromatography , chloride , acceptor , liquid–liquid extraction , analyte , glyphosate , inorganic chemistry , analytical chemistry (journal) , organic chemistry , biochemistry , physics , condensed matter physics , agronomy , biology , solvent extraction
Use of the supported liquid membrane (SLM) technique for (aminomethyl)phosphonic acid (AMPA) extraction is presented. For the extraction of this analyte a suitable SLM system involves a liquid membrane containing Aliquat 336 – a cationic carrier that facilitates AMPA transport. The extraction of this compound, as in the case of glyphosate, is dependent on the donor phase pH and the concentration and type of counter‐ion in the acceptor phase, although some differences are also observed. In both cases the transport mechanism is counter‐coupled transport in which the driving force of mass transport over the membrane is created by the gradient of chloride anions from the acceptor to donor phase.