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Bubble fractionation of enantiomers from solution using molecularly imprinted polymers as collectors.

Authors
  • Armstrong, D W
  • Schneiderheinze, J M
  • Hwang, Y S
  • Sellergren, B
Type
Published Article
Journal
Analytical chemistry
Publication Date
Sep 01, 1998
Volume
70
Issue
17
Pages
3717–3719
Identifiers
PMID: 9737214
Source
Medline
License
Unknown

Abstract

Adsorptive bubble separation methods have been used to enrich components from both heterogeneous and homogeneous solutions. These methods are particularly effective for processing large solution volumes at low cost. Previous work demonstrated that chiral, surface-active collectors could be used to enrich enantiomers from homogeneous solution in a foam fractionation process. In a significant extension of this work, the use of highly selective molecularly imprinted polymers (MIPs) and heterogeneous solutions for the bubble flotation of enantiomers was evaluated. The high selectivity and ease of recycling of the MIP make this a potentially powerful approach for process-scale separations from large-volume bulk solutions. New MIPs were produced with low swelling properties which allowed them to retain enantioselectivity after numerous recyclings.

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