High sensitive amperometric detection of glucose using conductive DLC electrode in higher potential region

Kensuke Honda, Akira Nakahara, Hiroshi Naragino, Kohsuke Yoshinaga

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

抄録

The possibility of a high sensitive amperometric detection of glucose using electrochemically-generated hydroxyl radicals at Ndoped DLC was examined. Flow injection analytical system using N-doped DLC as an electrode of electrochemical detector showed higher performance of glucose detection in a potential region of oxygen evolution (>3.6 V vs. Ag|AgCl). Linear dynamic range was 5 orders of magnitude (1 μM to 10 mM) and theoretical detection limit (S/N = 3) was 1.37 mM at 3.6 V vs. Ag|AgCl. In addition to glucose, linear relations between values of response current and of sample concentration were observed in molecules easily oxidized by OH radicals (ascorbic acid, 2-propanol, ethyl acetate and ethyl acetoacetate). The oxidation of glucose mediated by OH radicals generated at N-doped DLC in higher potential region is included in the mechanism of amperometric glucose detection at N-doped DLC.

本文言語英語
ホスト出版物のタイトルChemical Sensors 10 -and- MEMS/NEMS 10
出版社Electrochemical Society Inc.
ページ377-383
ページ数7
12
ISBN(印刷版)9781607683605
DOI
出版ステータス出版済み - 2013
外部発表はい
イベントSymposia on Chemical Sensors 10 - Chemical and Biological Sensors and Analytical Systems and Microfabricated and Nanofabricated Systems for MEMS/NEMS 10 - 222nd ECS Meeting/PRiME 2012 - Honolulu, HI, 米国
継続期間: 10 7 201210 12 2012

出版物シリーズ

名前ECS Transactions
番号12
50
ISSN(印刷版)1938-5862
ISSN(電子版)1938-6737

その他

その他Symposia on Chemical Sensors 10 - Chemical and Biological Sensors and Analytical Systems and Microfabricated and Nanofabricated Systems for MEMS/NEMS 10 - 222nd ECS Meeting/PRiME 2012
国/地域米国
CityHonolulu, HI
Period10/7/1210/12/12

All Science Journal Classification (ASJC) codes

  • 工学(全般)

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