1引言槲皮素（3，5，7，3’4-五羟基黄酮），是许多天然中草药的主要成份，并有较好的祛痰、止咳及一定的平喘作用。目前，测定槲皮素的方法主要有高效液相色谱法，分光光度法，而基于槲皮素-钨（Ⅵ）-十六烷基三甲基溴化铝（CTMAB（）体系的荧光光度法尚未见报道。2实验部分2 1 Introduction Quercetin (3,5,7,3’4-pentahydroxyflavone), is the main component of many natural Chinese herbal medicine, and has good expectorant, cough and a certain antiasthmatic effect. At present, the methods for the determination of quercetin mainly include high performance liquid chromatography and spectrophotometry. The fluorescence spectrometry based on the quercetin-tungsten (Ⅵ) -hexadecyl trimethyl aluminum bromide (CTMAB) system Have not yet reported .2 experimental part 2