摘要

An ultrasound-assisted extraction (UAE) and high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method that offers good linearity, accuracy and precision was developed for the simultaneous determination of rosmarinic acid (RA) in Cordia dichotoma seeds. Single-factor and orthogonal experiments were performed to determine the appropriate range of extraction conditions and to obtain the optimum extraction conditions respectively. The optimum UAE conditions for C. dichotoma seeds were as follows: ethanol concentration of 70%, solid/liquid ratio of 1: 35 g/mL, ultrasound time of 30 min and ultrasound power of 300 W. UAE is an alternative technique for the fast extraction of C. dichotoma seeds. The factors selected in this study had significant functions on the extraction of RA from C. dichotoma seeds.