Peer-Reviewed Journal Details
Mandatory Fields
Sheridan, EM;Breslin, CB
2005
March
Electroanalysis
Enantioselective detection of D- and L-phenylalanine using optically active polyaniline
Published
32 ()
Optional Fields
ELECTROCHEMICAL-BEHAVIOR CONDUCTING POLYMERS MODIFIED ELECTRODES CHIRAL POLYANILINE PYRROLE MONOMERS FILM PROPERTIES AMINO-ACIDS RECOGNITION VOLTAMMETRY ADSORPTION
17
532
537
Chiral conducting polyaniline, which was prepared electrochemically from (+) and (-) camphorsulfonic acid, was utilized for the enantiomeric detection of phenylalanine in neutral phosphate buffer solution. Following electropolymerization the polymer films were dedoped in aqueous ammonia and subsequently shown to maintain their chiral character. The electrochemical window for this polymer was determined to be between 0.2 V and 0.8 V (vs. SCE) and enantiomeric discrimination between (L-) and (D-)phenylalanine was seen with the application of differential pulse voltammetry. The (+) chiral polymer is shown to behave as an enantiomeric detector for the D enantiomer producing a peak in the voltammogram at ca. 0.7 V (vs. SCE) while the inverse is true for the (-) polymer, which detects the L enantiomer.
WEINHEIM
1040-0397
Grant Details