Studies on quenching of fluorescence of reagents in aqueous solution leading to an optical chloride-ion sensor

Abstract The sensitivity of quinoline- and acridine-type indicators towards the detection of low levels of chloride ions in aqueous and amine-doped media, by fluorescence quenching, is reported in this paper. Solution studies are based on the fluorescence of quinine sulphate, acridine and 3-(6-methoxyquinolino) propanesulphonate (SPQ) and the fluorescence response of these indicators has been examined at different pH values and at various chloride ion concentrations in aqueous media.

[1]  C. A. Berry,et al.  Estimation of intracellular chloride activity in isolated perfused rabbit proximal convoluted tubules using a fluorescent indicator. , 1988, Biophysical journal.

[2]  R. Velapoldi.  Considerations on Organic Compounds in Solution and Inorganic Ions in Glasses as Fluorescent Standard Reference Materials. , 1972, Journal of research of the National Bureau of Standards. Section A, Physics and chemistry.

[3]  Helmut Offenbacher,et al.  Optical sensor for continuous determination of halides , 1984 .

[4]  J. D. Winefordner,et al.  Limit of detection. A closer look at the IUPAC definition , 1983 .

[5]  J. Lakowicz.  Principles of fluorescence spectroscopy , 1983 .

[6]  F. Krug,et al.  Spectrophotometric flow injection determination of chloride in ethanol , 1981 .

[7]  A. Sanz-Medel.  Solid surface photoluminescence and flow analysis: a happy marriage , 1993 .

[8]  R. E. Humphrey,et al.  Mercuric lodate as an analytical reagent. Determination of chloride by spectrophotometric measurement of mercuric chloride with phenolphthalein complexone or Xylenol Orange , 1973 .

[9]  M. H. Noiré,et al.  A ferrous ion optical sensor based on fluorescence quenching , 1995 .

[10]  F. Fairbrother,et al.  Book reviewA text-book of quantitative inorganic analysis: A. I. Vogel: (including elementary instrumental analysis). 3rd Ed. Longmans, Green, London, 1962. Pp.xxx + 1216 70s. , 1963 .

[11]  I. B. Berlman.  Handbook of flourescence spectra of aromatic molecules , 1971 .

[12]  O. Wolfbeis,et al.  Fluorescence quenching method for determination of two or three components in solution , 1983 .

[13]  S. C. Thorpe,et al.  A kineto-optical method for the determination of chlorine gas , 1995 .

[14]  J. Miller,et al.  Statistics for Analytical Chemistry , 1993 .

[15]  F. D. Snell.  Photometric and fluorometric methods of analysis: Metals , 1978 .