4.7 Article

Quartz crystal microbalance for L-leucine sensing based on growth of L-leucine crystals immobilized on a monolayer of 11-mercaptoundecanoic acid

Journal

ANALYTICA CHIMICA ACTA
Volume 413, Issue 1-2, Pages 223-227

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/S0003-2670(00)00802-3

Keywords

chiral discrimination; surface gravimetry

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A L-leucine-seed-modified quartz crystal microbalance (QCM) oscillator showed selectively chiral discrimination in situ for leucine enantiomers. The obtained results exhibited strong QCM response to L-leucine, but the response to D-leucine was negligible. This selectivity was attributed to preferential crystallization of L-leucine at the solid-solution interface. (C) 2000 Elsevier Science B.V. All rights reserved.

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