Sensitized Room Temperature Phosphorimetry ofα-Bromo-naphthalene by Benzophenone in Aerated β-Cyclodextrin Solution

Abstract

Abstract: The sensitized α-bromonaphthene room temperature phosphorimetry by ben-zophenone in aerated β-cyclodextrin solution is presented. The room temperture phosphores-cence is observed when benzophenone is introduced into aqueous solution containing α-bromonaphthalene and β-cyclodextrin. The results show tht the phosphorescence enhance-ment induced by benzophenone is related to the function of benzophenone as both sensitizingand space-filling agents.The affecting factors on room temperature phosphorescence havebeen studied. The linear dynamic range between the concentration of α-bromonaphthaleneand the phosphorescence intensity is 0-4×10^-5 mol/L.The detection limit is 1.09× 10^-9mol/L. The method has been applied to the detection of α-bromonaphthalene in artificialmixture containing α-and β-bromonaphthalene, naphthalene,phenanthrene.

Key words: Benzophenone, Sensitized room temperature phosphorimetry, α-Bromonaph-thalene, Cyclodextrin

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XIE Jian-Wei, XU Jin-Gou, CNEN Guo-Zhen, Chang-Song. Sensitized Room Temperature Phosphorimetry ofα-Bromo-naphthalene by Benzophenone in Aerated β-Cyclodextrin Solution[J]. Chem. J. Chinese Universities, 1996, 17(1): 46.

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Sensitized Room Temperature Phosphorimetry ofα-Bromo-naphthalene by Benzophenone in Aerated β-Cyclodextrin Solution

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