Coulometric detection of an analyte in a liquid plug formed in a microflow channel

F. Sassa, H. Laghzali, J. Fukuda, H. Suzuki

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Applicability of coulometric detection was tested for the analysis of an analyte in a liquid plug confined in a PDMS microflow channel. A plug prepared in the flow channel was placed on a three-electrode system and hydrogen peroxide was detected. With plugs of a small volume, the depletion of the analyte was rapid, making reproducible amperometric detection difficult particularly when the flow channel was shallow. On the other hand, coulometric detection showed a clear relationship between the generated charge and the concentration. However, when the volume of the plug was large, only a part of the analyte was used for detection, suggesting the possibility to improve the detection sensitivity further. The device was also tested in the detection of L-glutamate.

本文言語英語
ホスト出版物のタイトルTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
ページ955-958
ページ数4
DOI
出版ステータス出版済み - 12 11 2009
外部発表はい
イベントTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems - Denver, CO, 米国
継続期間: 6 21 20096 25 2009

出版物シリーズ

名前TRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems

その他

その他TRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
国/地域米国
CityDenver, CO
Period6/21/096/25/09

All Science Journal Classification (ASJC) codes

  • ハードウェアとアーキテクチャ
  • 電子工学および電気工学

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