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Study and Application of Fluorimetric system of Quercetin Sb(Ⅲ) Tween 80

Yu Lin and Li Yunpeng  (Department of Chemical Engineering,Guangdong Industrial University,Guangzhou 510090)  
The optimum conditions for the formation of the micellar complex were studied in the presence of Tween 80 which can increase the fluorescence intensity greatly in 0.012mol/L hydrochloric acid medium.The calibration graph is linear in the concentration range of 1.2×10 -5 ~2 88×10 -4 mol/L with a good correlation coefficient ( r =0.9993).The sensitivity of the method is 1 5mol/L .This simple method with good selectivity has been applied to the analysis of quercetin in plants.
【CateGory Index】: O657.39
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