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Enantioselective Recognition of Dopa Enantiomers in the Presence of Ascorbic Acid or Tyrosine
Author(s) -
Han Qian,
Chen Qiao,
Wang Yonghua,
Zhou Juan,
Fu Yingzi
Publication year - 2012
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201100378
Subject(s) - enantiomer , ascorbic acid , chemistry , enantioselective synthesis , differential pulse voltammetry , tyrosine , cyclic voltammetry , cysteine , combinatorial chemistry , selectivity , stereochemistry , organic chemistry , electrode , biochemistry , electrochemistry , catalysis , enzyme , food science
A simple sensor was obtained through N ‐isobutyryl‐ L ‐( D )‐cysteine enantiomers self‐assembled monolayer. It was demonstrated that the N ‐isobutyryl‐cysteine modified gold electrodes can enantioselectively recognize 3,4‐dihydroxyphenylalanine (dopa) enantiomers. The electrocatalytic behaviors of enantiomers were analyzed with cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Selectivity of the chiral surface was estimated by investigating two mixture enantiomers (dopa‐ascorbic acid and dopa‐tyrosine), it certified that the sensor was only satisfactorily used to specific recognize dopa enantiomers. The possible mechanism for the enantioselective recognition was discussed.