Extraction across supported liquid membranes by use of electrical fields
Research output: Contribution to journal › Journal article › Research › peer-review
The method of electrokinetic migration that used electrical fields to extract supported liquid membranes (SLM) was demonstrated. Several hydrophobic basic drug substances were extracted protonated molecules from a 300 μL acidic sample solution through a SLM, consisting 15 μL 2-nitropheynl octyl ether (NPOE) into 30 μL 10 mmol L-1hydrochloric acid (HCL) as the acceptor solution, applying 300 V dc. The electrical potential difference was the force driving extraction of the charged analytes, without any pH gradient across the SLM. The use of electrical potential difference was found to be a significant driving force for SLM extraction a pH gradient. The kinetic advantage of using electrical field was found also found to be significant, when extractions were performed from small sample volumes.
Original language | English |
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Journal | Analytical and Bioanalytical Chemistry |
Volume | 388 |
Issue number | 3 |
Pages (from-to) | 521-523 |
Number of pages | 3 |
ISSN | 1618-2642 |
DOIs | |
Publication status | Published - 1 Jun 2007 |
ID: 231651215