This study provided a practical procedure, for the first time, to compare the component difference of the floral parts of Trollius chinensis and identify the characteristic peaks of each floral part using the high-performance liquid chromatographic fingerprint technique followed by similarity analysis. The results showed that the constituents of different floral parts exhibited lower similarity than those of the same part. It can be concluded that the procedure established herein is useful for analysis of variability in constituent distribution of herbal drugs, and the components are unevenly distributed in the floral parts of T. chinensis.
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