Selective Electrochemical Response of Dopamine against 3,4-Dihydroxyphenylacetic Acid at Bare Indium–Tin Oxide Electrode

Oxford University Press (OUP) - Tập 34 Số 8 - Trang 1120-1121 - 2005
Guobao Xu1, Osamu Niwa1,2, Osamu Niwa3
1CREST, Japan Science and Technology Agency
2NTT Microsystem Integration Laboratories
3National Institute of Advanced Industrial Science and Technology (AIST)

Tóm tắt

Abstract Electrochemistry of dopamine and 3,4-dihydroxyphenylacetic acid at ITO were investigated. The oxidation of dopamine significantly depended on pH and supporting electrolyte. The peak current increased more than one hundred folds with increasing pH from 2.5 to 10.0 in phosphate buffer. Moreover, selective oxidation of dopamine against 3,4-dihydroxyphenylacetic acid at bare ITO was observed. It is the first electrode material that can be produced in large scale for selective oxidation of dopamine. Selective catecholamine detection at ITO is suggested.

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Oxford University Press (OUP)

Tập 34 Số 8

1120-1121

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