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|Title:||Polymer-coated hollow fiber microextraction combined with on-column stacking in capillary electrophoresis|
|Authors:||Basheer, C. |
Functional polymers and hollow fiber
|Citation:||Basheer, C., Wang, H., Jayaraman, A., Valiyaveettil, S., Lee, H.K. (2006-09-22). Polymer-coated hollow fiber microextraction combined with on-column stacking in capillary electrophoresis. Journal of Chromatography A 1128 (1-2) : 267-272. ScholarBank@NUS Repository. https://doi.org/10.1016/j.chroma.2006.06.040|
|Abstract:||In this work, a novel microextraction method termed polymer-coated hollow fiber microextraction (PC-HFME) was developed in combination with capillary electrophoresis (CE). Polar dihydroxylated polymethalmethacrylate polymer was coated onto a porous propylene hollow fiber membrane and used as an adsorbent and that was placed in a stirred aqueous sample solution. Tumbling of the extraction device within the sample solution facilitated extraction. The amino alcohols (2-amino-1-phenylethanol, norephedrine, alprenolol and atenolol which are β-blocker drugs), were used as model compounds to investigate the extraction performance. No organic solvent was used in this procedure. The extract was then further concentrated through on-column stacking (normal stacking mode) during CE analysis. The detection limits ranged from 0.9 to 7 ng ml-1. Relative standard deviations (n = 6) ranged from 4 to 6%. The extraction of the amino alcohols in spiked wastewater effluent (representing a complex matrix) was evaluated using the developed procedure. © 2006 Elsevier B.V. All rights reserved.|
|Source Title:||Journal of Chromatography A|
|Appears in Collections:||Staff Publications|
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