12 Citations (Scopus)

Abstract

The electrochemical reaction of hydroquinone-benzoquinone (HQ-BQ) system in acetonitrile was studied by a flow-through Electrochemical Surface Plasmon Resonance (EC-SPR) technique. The semiquinone radical anion (BQ •-) was detected as a large negative SPR shift for the first time by the hyphenated technique. The real time SPR signal shows the entire reaction process of the BQ •- including generation, transformation and disappearance. The lifetime of the BQ •- in the reaction was extracted by comparing the SPR signals along the flow stream. The study demonstrates that the flow-through EC-SPR is a powerful tool for monitoring not only surface bindings, but also solution phase chemical reactions. In addition, it is especially suitable for detecting unstable intermediate reaction products, which are difficult to measure using conventional analytical methods.

Original languageEnglish (US)
Pages (from-to)37-41
Number of pages5
JournalJournal of Electroanalytical Chemistry
Volume649
Issue number1-2
DOIs
StatePublished - Nov 15 2010

Fingerprint

Surface plasmon resonance
Reaction products
Acetonitrile
Anions
Chemical reactions
Negative ions
Monitoring
benzoquinone
semiquinone radicals
acetonitrile
hydroquinone

Keywords

  • Benzoquinone
  • Chronoamperometry
  • Cyclic voltammetry
  • Electrochemical Surface Plasmon Resonance
  • Hydroquinone
  • Radical

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

Cite this

Flow-through Electrochemical Surface Plasmon Resonance : Detection of intermediate reaction products. / Huang, Xinping; Wang, Shaopeng; Shan, Xiaonan; Chang, Xijun; Tao, Nongjian.

In: Journal of Electroanalytical Chemistry, Vol. 649, No. 1-2, 15.11.2010, p. 37-41.

Research output: Contribution to journalArticle

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title = "Flow-through Electrochemical Surface Plasmon Resonance: Detection of intermediate reaction products",
abstract = "The electrochemical reaction of hydroquinone-benzoquinone (HQ-BQ) system in acetonitrile was studied by a flow-through Electrochemical Surface Plasmon Resonance (EC-SPR) technique. The semiquinone radical anion (BQ •-) was detected as a large negative SPR shift for the first time by the hyphenated technique. The real time SPR signal shows the entire reaction process of the BQ •- including generation, transformation and disappearance. The lifetime of the BQ •- in the reaction was extracted by comparing the SPR signals along the flow stream. The study demonstrates that the flow-through EC-SPR is a powerful tool for monitoring not only surface bindings, but also solution phase chemical reactions. In addition, it is especially suitable for detecting unstable intermediate reaction products, which are difficult to measure using conventional analytical methods.",
keywords = "Benzoquinone, Chronoamperometry, Cyclic voltammetry, Electrochemical Surface Plasmon Resonance, Hydroquinone, Radical",
author = "Xinping Huang and Shaopeng Wang and Xiaonan Shan and Xijun Chang and Nongjian Tao",
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T1 - Flow-through Electrochemical Surface Plasmon Resonance

T2 - Detection of intermediate reaction products

AU - Huang, Xinping

AU - Wang, Shaopeng

AU - Shan, Xiaonan

AU - Chang, Xijun

AU - Tao, Nongjian

PY - 2010/11/15

Y1 - 2010/11/15

N2 - The electrochemical reaction of hydroquinone-benzoquinone (HQ-BQ) system in acetonitrile was studied by a flow-through Electrochemical Surface Plasmon Resonance (EC-SPR) technique. The semiquinone radical anion (BQ •-) was detected as a large negative SPR shift for the first time by the hyphenated technique. The real time SPR signal shows the entire reaction process of the BQ •- including generation, transformation and disappearance. The lifetime of the BQ •- in the reaction was extracted by comparing the SPR signals along the flow stream. The study demonstrates that the flow-through EC-SPR is a powerful tool for monitoring not only surface bindings, but also solution phase chemical reactions. In addition, it is especially suitable for detecting unstable intermediate reaction products, which are difficult to measure using conventional analytical methods.

AB - The electrochemical reaction of hydroquinone-benzoquinone (HQ-BQ) system in acetonitrile was studied by a flow-through Electrochemical Surface Plasmon Resonance (EC-SPR) technique. The semiquinone radical anion (BQ •-) was detected as a large negative SPR shift for the first time by the hyphenated technique. The real time SPR signal shows the entire reaction process of the BQ •- including generation, transformation and disappearance. The lifetime of the BQ •- in the reaction was extracted by comparing the SPR signals along the flow stream. The study demonstrates that the flow-through EC-SPR is a powerful tool for monitoring not only surface bindings, but also solution phase chemical reactions. In addition, it is especially suitable for detecting unstable intermediate reaction products, which are difficult to measure using conventional analytical methods.

KW - Benzoquinone

KW - Chronoamperometry

KW - Cyclic voltammetry

KW - Electrochemical Surface Plasmon Resonance

KW - Hydroquinone

KW - Radical

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