| Summary: | 碩士 === 國立暨南國際大學 === 應用化學系 === 99 === In this study, dopamine functionalized carbon nanotube(CNT-DA) was
synthesized two kind of carbon nanotubes are used, multi-walled carbon nanotubes
(MWCNT) and single-walled carbon nanotubes(SWCNT). There are 4 modified
electrodes：SPCE / MWCNT、 SPCE / MWCNT-DA、SPCE / SWCNT and
SPCE / SWCNT-DA.
The modified electrodes ware studied by electrochemical methods and average
surface coverage (Γ) electron transfer coefficient(α) and the direct electron transfer
rate constant(ks) were obtained.
The modified electrodes were used to detect five kind of analysts in pH 7.0 PBS,
including vitamin C(AA), NADH, GSH, CySH and 2-ME. The thiol molecules were
observed to deactivate the electrochemical activity of the modified electrodes. The
processof the possible reaction mechanisms were proposed.
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