Direct determination of etofenprox using surface plasmon resonance

Satoshi Sasaki, Eriko Kai, Hirotaka Miyachi, Hitoshi Muguruma, Kazunori Ikebukuro, Hideo Ohkawa, Isao Karube

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Direct determination of etofenprox was performed using surface plasmon resonance. A thin gold film sputtered on to a glass surface was coated with plasma polymerized ethylene diamine (1,2-diaminoethane). Polyclonal anti-etofenprox antibody was covalently immobilized on this polymer. The response of the sensor was proportional to the etofenprox concentration over the 0.5-50mgl-1 range; atrazine produced a negligible response under the same conditions. When commercially available sensor chips were used, the response did not show any dependence on the etofenprox concentration. This is believed to be due to the larger number of amino groups on the polymer surface of plasma polymerized ethylene diamine, allowing more antibody to be immobilized than on the commercially available sensor chips. Copyright (C) 1998 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)229-233
Number of pages5
JournalAnalytica Chimica Acta
Issue number2-3
Publication statusPublished - 1998 May 15
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Spectroscopy
  • Environmental Chemistry


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