Abstract
Dendrobium has great medicinal value, and their active components vary across different species of Dendrobium. In this study, a two-dimensional ion mobility mass spectrometry point image based on retention time and drift time was first proposed, and the collision cross-section values of Dendrobium metabolites were calculated by the IM browser, which can identify the targeted compounds more accurately, especially for isomeric compounds. During the experimental process, a total of 74 batches of Dendrobium samples containing nine species of Dendrobium were analyzed by ultrahigh-performance liquid chromatography coupled with ion mobility quadrupole-time-of-flight mass spectrometry. Nontargeted plant metabonomics combined with multivariate statistical analysis was used to realize the clustering of different species of Dendrobium, which made the identification more scientific. Therefore, this method can realize the analysis of multiple active components in Dendrobium, can be used for the identification of Dendrobium teas and can provide a reference for the quality control of Dendrobium.
Published Version
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