Abstract：Taking three brands of Ningxia dry red wine as the research object， the content of trans-resveratrol was determined by HPLC with the extraction conditions and chromatographic conditions optimized. The results showed that the detection limit of this method is 0.015 mg/L and the quantitative limit is 0.03 mg/L. Good linearity in the range of 0.03 mg/L－300 mg/L， with the linear equation of y＝1.1161x＋0.0137 and correlation coefficient of 0.999 6. The reproducibility is good， and the RSD of the standard product is 0.23% and the RSD of the sample is 0.18%. The accuracy is high， and the recovery range is between 92.3%－97.1%. The results showed that the content of trans-resveratrol was closely related to the wine brand and grape variety， and the content of trans-resveratrol in the sample was between 1.97 mg/L－3.70 mg/L.
2018, Vol. 52 
