Simultaneous Determination of the Seven Phenylpropanoids in Xanthii Fructus Using a HPLC-PDA and LC-MS

ABSTRACT

Xanthii Fructus has been traditionally used for the treatment of rhinitis, rheumatoid arthritis, and eczema. In this study, a high-performance liquid chromatography-photodiode array (HPLC-PDA) method was developed and then used for the simultaneous analysis of eight phenylpropanoids in Xanthii Fructus. The analytical column used for this separation was a SunFire™ C₁₈ column, maintained at 40℃. The mobile phase used was 1.0% acetic acid in distilled water and 1.0% acetic acid in acetonitrile with gradient elution. For identify of each component, the mass spectrometer (MS) was used a Waters triple quadrupole mass spectrometer requipped with electrospray ionization (ESI) source. The HPLC-PDA method showed good linearity correlation coefficients were ≥ 0.9996. The limits of detection and quantification of the eight compounds were 0.02 – 0.04 and 0.06 – 0.14 µg/mL, respectively. The extraction recoveries ranged from 97.51 to 108.67%. The relative standard deviation values of intra- and inter-day precision were 0.06 – 1.55 and 0.09 – 1.68%, respectively. The validated HPLC-PDA method was applied to simultaneously analyse the amounts of eight phenlypropanoids in Xanthii Fructus.