植物精油微粉中肉桂醛含量超高效液相色谱测定OA北大核心CSTPCD

The aim of this study was to establish a UPLC method for determination of cinnamaldehyde in plant essential oil powder.The elution was performed by using CORTECS® C18 column and using acetoni-trile-water(42:58)as mobile phase.The flow rate was set at 0.3 mL/min.The detection wavelength was 280 nm.The column temperature was 30 ℃ and the injection volume was 0.6 μL.The results showed that cinnamaldehyde could be separated completely and the linear relationship was good(R2=0.999 9)in the range of 1.0-200.0 μg/mL.The limit of detection was 0.5 μg/mL.The relative standard deviations for preci-sion and stability assessment results were both less than 2.0％.The average recoveries of cinnamaldehyde were 97.95％-101.71％.All of them were in accordance with the requirements of the methodology.The rela-tive contents of cinnamaldehyde in 6 samples were in accordance with the requirements.This method is characterized by low detection limit,high precision and accuracy,and rapid analysis.