The detection limit of neurotransmitters can be lowered by using a carbon-based inter digitated array (IDA) microelectrode. The repeated redox reaction between band elec trodes in the IDA amplifies the signal current, and the low background noise level of the carbon film allows for an increased signal-to-noise ratio. A low detection limit of 5 femtograms was obtained for dopamine, a neurotransmitter, by combining a micro-column LC and the carbon IDA electrode.
|Number of pages||4|
|Publication status||Published - 1996 Mar 1|
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering