TITLE

Electrocatalytic oxidation of bilirubin at ferrocenecarboxamide modified MWCNT–gold nanocomposite electrodes

AUTHOR(S)
Wang, Cong; Wang, Guangfeng; Fang, Bin
PUB. DATE
January 2009
SOURCE
Microchimica Acta;Jan2009, Vol. 164 Issue 1/2, p113
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A glassy carbon electrode (GCE) modified with ferrocenecarboxamide, gold nanoparticles and multiwall carbon nanotubes was constructed and characterized by field emission scanning electron microscopy and cyclic voltammetry. The electrochemical behavior of bilirubin (BR) on the modified electrode was investigated and it was found that the modified electrode had an obvious electrocatalytic effect on bilirubin. Compared with a bare GCE, the modified electrode exhibited a marked enhancement in the current response for bilirubin. Amperometry was employed to investigate the electrocatalytical oxidation of bilirubin on the modified electrode. As a result, it exhibits an excellent electrocatalytic response to bilirubin with a response time of less than 5 s, a broad linear range of 1 to 100 μmol L−1, as well as good long-term stability and reproducibility.
ACCESSION #
36063419

 

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