Fluorometric Determination of Trace Amounts of Fluoride Ion Using an Expanded Porphyrin

M. Tabata, K. Kaneko, Y. Murakami, Y. Hisaeda, H. Mimura

研究成果: ジャーナルへの寄稿記事

19 引用 (Scopus)

抄録

A highly selective and sensitive method of fluorometry is described for determination of the fluoride ion at the parts per billion level via the ion-pair complex formation of the fluoride ion with an expanded prophyrin [2,23-diethyl-8,17-bis(2-ethoxycarbonylethyl)-3,7,12,13,18,22-hexamethyl sapphyrin (H3sap)]. The ion-pair complex gives out an enhanced fluorescence intensity at 680 nm on excitation at 450 nm. Since the present method is based on a direct reaction of the fluoride ion with the sappyrin, a 200-fold amount of the aluminum (III) ion [10-4M (M = mol dm-3)] and a 2000-fold amount of the iron(III) ion (10-3M) over the fluoride ion did not interfere with determination of the fluoride ion at concentrations as low as 5 × 10-7M in the presence of 1,2-diaminocyclohexane-N,N,N′,N′-teraacetic acid. The proposed method was applied to determination of the fluoride ion in various water samples (tap water, river water, rain water, underground water, and hot spring water) and satisfactory results were obtained.

元の言語英語
ページ(範囲)136-144
ページ数9
ジャーナルMicrochemical Journal
49
発行部数2-3
DOI
出版物ステータス出版済み - 4 1 1994

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Porphyrins
Fluorides
Ions
Water
Hot springs
Springs (water)
Aluminum
Rain
Groundwater
Iron
Rivers
Fluorescence
Acids

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Spectroscopy

これを引用

Fluorometric Determination of Trace Amounts of Fluoride Ion Using an Expanded Porphyrin. / Tabata, M.; Kaneko, K.; Murakami, Y.; Hisaeda, Y.; Mimura, H.

:: Microchemical Journal, 巻 49, 番号 2-3, 01.04.1994, p. 136-144.

研究成果: ジャーナルへの寄稿記事

Tabata, M. ; Kaneko, K. ; Murakami, Y. ; Hisaeda, Y. ; Mimura, H. / Fluorometric Determination of Trace Amounts of Fluoride Ion Using an Expanded Porphyrin. :: Microchemical Journal. 1994 ; 巻 49, 番号 2-3. pp. 136-144.
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AU - Mimura, H.

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