NEW METHOD FOR DETERMINING CONTENT OF RESVERATROL IN EXTRACT OF POLYGONUM CUSPIDATUM SIAB. ET ZUCC. BY SYNCHRONOUS FLUOROMETRY

A new method was established to determine content of resveratrol in extract of Polygonum cuspidatum Siab. et Zucc. by sychronous fluorometry. Effects of fluoresence intensity, as well as its precision, repetition and recovery efficiency were studied systematically. The linear relationship was y = 18.90x + 3.1298,or fluorescence intensity of the system presented a linear relationship with concentration of resveratrol in the range of 0-1.68×10-5 mol/L, the detection limit was 8.839×10-10 mol/L.The study indicated that this method is simple, viable, of low cost and high precision. It could be used in both scientific research and industrial production.