Electrochemical response dependent with composition of parallel opposed dual electrode and flow rate in a microchannel

Takeshi Ito, Kenichi Maruyama, Osamu Niwa, Koji Suzuki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We proposed an electrochemical microsystem based on a parallel opposed dual electrochemical detector in a microchannel and studied its properties using potassium ferrocyanide for flow analysis with dual mode cyclic voltammetry (CV) and chronoamperometry (CA). Electrode gap was defined by the channel depth (50 μm). Using our microchip, a highly collection efficiency (Max: 99%) was achieved without miniaturizing the dual electrode by micromachining techniques, when the potential sweep rate was set to 10 mV s-1 without the continuous flow. We also obtained the higher collection efficiency of nearly 100% with a quicker response time of around a few seconds on chronoamperometry (CA). Current amplification contributed to redox cycling was observed.

Original languageEnglish
Title of host publicationProceedings - Electrochemical Society
EditorsC. Bruckner-Lea, G. Hunter, N. Miura, P. Vanysek, M. Egashira, F. Mizutani
Pages289-299
Number of pages11
Volume8
Publication statusPublished - 2004
EventChemical Sensors VI: Chemical and Biological Sensors and Analytical Methods - Proceedings of the International Symposium - Honolulu, HI, United States
Duration: 2004 Oct 32004 Oct 8

Other

OtherChemical Sensors VI: Chemical and Biological Sensors and Analytical Methods - Proceedings of the International Symposium
CountryUnited States
CityHonolulu, HI
Period04/10/304/10/8

Fingerprint

Chronoamperometry
Microchannels
Flow rate
Electrodes
Microsystems
Micromachining
Chemical analysis
Cyclic voltammetry
Amplification
Potassium
Detectors
Oxidation-Reduction

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Ito, T., Maruyama, K., Niwa, O., & Suzuki, K. (2004). Electrochemical response dependent with composition of parallel opposed dual electrode and flow rate in a microchannel. In C. Bruckner-Lea, G. Hunter, N. Miura, P. Vanysek, M. Egashira, & F. Mizutani (Eds.), Proceedings - Electrochemical Society (Vol. 8, pp. 289-299)

Electrochemical response dependent with composition of parallel opposed dual electrode and flow rate in a microchannel. / Ito, Takeshi; Maruyama, Kenichi; Niwa, Osamu; Suzuki, Koji.

Proceedings - Electrochemical Society. ed. / C. Bruckner-Lea; G. Hunter; N. Miura; P. Vanysek; M. Egashira; F. Mizutani. Vol. 8 2004. p. 289-299.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ito, T, Maruyama, K, Niwa, O & Suzuki, K 2004, Electrochemical response dependent with composition of parallel opposed dual electrode and flow rate in a microchannel. in C Bruckner-Lea, G Hunter, N Miura, P Vanysek, M Egashira & F Mizutani (eds), Proceedings - Electrochemical Society. vol. 8, pp. 289-299, Chemical Sensors VI: Chemical and Biological Sensors and Analytical Methods - Proceedings of the International Symposium, Honolulu, HI, United States, 04/10/3.
Ito T, Maruyama K, Niwa O, Suzuki K. Electrochemical response dependent with composition of parallel opposed dual electrode and flow rate in a microchannel. In Bruckner-Lea C, Hunter G, Miura N, Vanysek P, Egashira M, Mizutani F, editors, Proceedings - Electrochemical Society. Vol. 8. 2004. p. 289-299
Ito, Takeshi ; Maruyama, Kenichi ; Niwa, Osamu ; Suzuki, Koji. / Electrochemical response dependent with composition of parallel opposed dual electrode and flow rate in a microchannel. Proceedings - Electrochemical Society. editor / C. Bruckner-Lea ; G. Hunter ; N. Miura ; P. Vanysek ; M. Egashira ; F. Mizutani. Vol. 8 2004. pp. 289-299
@inproceedings{02d97c02f2b14cf8901a6e95fcd17172,
title = "Electrochemical response dependent with composition of parallel opposed dual electrode and flow rate in a microchannel",
abstract = "We proposed an electrochemical microsystem based on a parallel opposed dual electrochemical detector in a microchannel and studied its properties using potassium ferrocyanide for flow analysis with dual mode cyclic voltammetry (CV) and chronoamperometry (CA). Electrode gap was defined by the channel depth (50 μm). Using our microchip, a highly collection efficiency (Max: 99{\%}) was achieved without miniaturizing the dual electrode by micromachining techniques, when the potential sweep rate was set to 10 mV s-1 without the continuous flow. We also obtained the higher collection efficiency of nearly 100{\%} with a quicker response time of around a few seconds on chronoamperometry (CA). Current amplification contributed to redox cycling was observed.",
author = "Takeshi Ito and Kenichi Maruyama and Osamu Niwa and Koji Suzuki",
year = "2004",
language = "English",
volume = "8",
pages = "289--299",
editor = "C. Bruckner-Lea and G. Hunter and N. Miura and P. Vanysek and M. Egashira and F. Mizutani",
booktitle = "Proceedings - Electrochemical Society",

}

TY - GEN

T1 - Electrochemical response dependent with composition of parallel opposed dual electrode and flow rate in a microchannel

AU - Ito, Takeshi

AU - Maruyama, Kenichi

AU - Niwa, Osamu

AU - Suzuki, Koji

PY - 2004

Y1 - 2004

N2 - We proposed an electrochemical microsystem based on a parallel opposed dual electrochemical detector in a microchannel and studied its properties using potassium ferrocyanide for flow analysis with dual mode cyclic voltammetry (CV) and chronoamperometry (CA). Electrode gap was defined by the channel depth (50 μm). Using our microchip, a highly collection efficiency (Max: 99%) was achieved without miniaturizing the dual electrode by micromachining techniques, when the potential sweep rate was set to 10 mV s-1 without the continuous flow. We also obtained the higher collection efficiency of nearly 100% with a quicker response time of around a few seconds on chronoamperometry (CA). Current amplification contributed to redox cycling was observed.

AB - We proposed an electrochemical microsystem based on a parallel opposed dual electrochemical detector in a microchannel and studied its properties using potassium ferrocyanide for flow analysis with dual mode cyclic voltammetry (CV) and chronoamperometry (CA). Electrode gap was defined by the channel depth (50 μm). Using our microchip, a highly collection efficiency (Max: 99%) was achieved without miniaturizing the dual electrode by micromachining techniques, when the potential sweep rate was set to 10 mV s-1 without the continuous flow. We also obtained the higher collection efficiency of nearly 100% with a quicker response time of around a few seconds on chronoamperometry (CA). Current amplification contributed to redox cycling was observed.

UR - http://www.scopus.com/inward/record.url?scp=17044414076&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17044414076&partnerID=8YFLogxK

M3 - Conference contribution

VL - 8

SP - 289

EP - 299

BT - Proceedings - Electrochemical Society

A2 - Bruckner-Lea, C.

A2 - Hunter, G.

A2 - Miura, N.

A2 - Vanysek, P.

A2 - Egashira, M.

A2 - Mizutani, F.

ER -