Theory and experiments of microelectrodes performing as concentration probes within microfluidic channels with high temporal resolution

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TitreTheory and experiments of microelectrodes performing as concentration probes within microfluidic channels with high temporal resolution
Type de publicationJournal Article
Nouvelles publications2011
AuteursAmatore, C, Lemmer C, Perrodin P, Sella C, Thouin L
JournalElectrochemistry Communications
Volume13
Fascicule12
Pagination1459-1461
Année de publication9/2011
ISBN13882481
Résumé

The performances of a single microband electrode probing within a microfluidic channel, the passage of a concentration front of electroactive species, were investigated. Optimal conditions in terms of device geometries and hydrodynamic flow were delineated to allow amperometric detections with high temporal resolution. These conditions correspond to specific regimes reflecting the complex coupling between diffusional and convective transport. Experimental current responses were in excellent agreement with the theoretical predictions. A new concept of microchannel electrodes acting as concentration probes was thus successfully demonstrated

DOI10.1016/j.elecom.2011.09.019
Importer un fichierElectrochemistry Communications
Unité de rattachement: 
UMR 8640