Fluorescence quenching oxygen sensor using an aluminum phthalocyanine-polystyrene film

Yutaka Amao, Keisuke Asai, Ichiro Okura

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

An aluminum 2,9,16,23-tetraphenoxy-29H, 31H-phthalocyanine hydroxide (AlPc(OH))-polystyrene (PS) film was prepared and its photophysical and photochemical properties were measured. An optical oxygen sensor based on the fluorescence quenching of AlPc(OH)-PS film by oxygen was developed. The ratio I0/I100 is used to describe the sensitivity of the sensing film, where I0 and I100 represent the detected fluorescence intensities from a film exposed to 100% argon and 100% oxygen, respectively. The I0/I100 of AlPc(OH)-PS film is estimated to be 1.04. A Stern-Volmer plot of the film exhibited considerable linearity in low oxygen concentration region (~10%) and the Stern-Volmer constant, K(SV) is estimated to be 2.4x10-3%-1. Copyright (C) 2000 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)41-44
Number of pages4
JournalAnalytica Chimica Acta
Volume407
Issue number1-2
DOIs
Publication statusPublished - 2000 Feb 29
Externally publishedYes

Keywords

  • Aluminum phthalocyanine
  • Fluorescence quenching by oxygen
  • Optical oxygen sensor

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy

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