Stripping voltammetric determination of nicardipine using β-cyclodextrin incorporated carbon nanotube-modified glassy carbon electrode

摘要: An electrochemical sensor modified with multi-walled carbon nanotubes-β-cyclodextrin (MWCNTs-β-CD) film was constructed and applied to the determination of nicardipine. The behavior nicardipine at chemically electrode investigated. After stripping on MWCNTs-β-CD −0.9 V for 1 min, a well defined oxidation peak produced in 0.04 M NaOH. Determination has been further improved by formation inclusion complex β-CD showed preferable analytical characteristics electrocatalytic compared MWCNTs bare glassy (GCE). surface morphology characterized using impedance spectroscopy. calibration curve linear from 1.0 × 10−7 2.0 10−5 M. limit detection obtained as 10−8 results demonstrated that this excellent sensitivity selectivity. blood serum recoveries.