Electrochemical detection using interdigitated array carbon microelectrodes: Detection limit of 5/1,000 trillionths grams achieved

Masao Morita, Osamu Niwa

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)77-80
Number of pages4
JournalNTT Review
Volume8
Issue number2
Publication statusPublished - 1996 Mar 1
Externally publishedYes

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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