Study of Cyclodextrin Zinc（ Ⅱ） Fluorescent Reagent Used in Water Analysis
Article Abstract: A new water-soluble fluorescent reagent HQAS modified /3-CD（HQAS-1-CD） has been synthesized. The reagent could form a complex with zinc ion to cause its fluorescence enhancing. Several metal ions, such as Na^＋, K^ ＋, Ca^2＋, Mg^2＋, Mn^2＋ , Fe^2＋ and Co^2＋, show little interference to the fluorescence response to Zn^2＋. A new spectrofluorimetric method for the determination of trace zinc using this reagent was developed. The linear range is from 0 to 13ug/L and the detection limit is 0.57ug/L. The method was used to determine trace zinc in mineral water sample with satisfactory results.
About Author:
Author: LI Yun-Hong ZHAO Yu-LinPublisher: Water Quality lntendance ＆ Measure Station of Qujing Parent Company about Water Supply and Drainage, Qujing,Yunnan 655000,P. R. China ; School of Biology ＆ Chemical Engineering, Kunming University of Science ＆ Technology, Kunming 650224, P. R. China
Keywords:Cyclodextrin , N （ 8Quinolyl ）pAminobenzenesulfonamide , Zinc , Spectrofluorimetry
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