Studies of the effect of halide ions on the fluorescence of quinine sulfate

The effect of halide ions (Cl−, Br− and I−) on the fluorescence of quinine sulfate in dilute sulfuric acid solution was studied by fluorescence spectra, ultraviolet‐visible (UV‐visible) absorption spectra and fluorescence decay technique. The results exhibited that halide ions with heavier atomic ma...

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Veröffentlicht in:	Luminescence (Chichester, England) England), 2019-06, Vol.34 (4), p.450-455
Hauptverfasser:	Guo, Yongming, Cao, Fengpu, Qiu, Pengxiang, Wang, Zhuo
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption Absorption spectra Atomic properties Decay Fluorescence halide ions Halogens - chemistry Ions Ions - chemistry Molecular Conformation Quenching Quinine Quinine - chemistry quinine sulfate Spectra Spectrometry, Fluorescence Spectrophotometry, Ultraviolet Sulfates Sulfuric acid Sulphuric acid Ultraviolet radiation Ultraviolet spectra
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Zusammenfassung:	The effect of halide ions (Cl−, Br− and I−) on the fluorescence of quinine sulfate in dilute sulfuric acid solution was studied by fluorescence spectra, ultraviolet‐visible (UV‐visible) absorption spectra and fluorescence decay technique. The results exhibited that halide ions with heavier atomic mass could significantly reduce the fluorescence intensity of quinine sulfate, as a result, the order of fluorescence quenching caused by halide ions is Cl−
ISSN:	1522-7235 1522-7243
DOI:	10.1002/bio.3627