Abstract − Analytical Sciences, 19(9), 1313 (2003).
Analysis of Paeoniae Radix by High-Performance Liquid Chromatography-Electrospray Ionization-Mass Spectrometry
Xinfeng ZHAO and Yuqing SUN
Department of Analytical Chemistry, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
A method has been developed for the qualitative analysis of paeonol, paeoniflorin and their derivatives in Paeoniae Radix by high-performance liquid chromatography-electrospray ionization-mass spectrometry (HPLC-ESI-MS). Gradient elution with acetonitrile-water solvent system was employed in an HPLC-ESI-MS study. The negative-ion ESI mode was suitable for these compounds. The peaks were identified by their mass spectra, UV spectra and fragments of their MS2 spectra. The structures of three unknown compounds are inferred in this paper.
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