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Representative chromatogram by UPLC-MS of Scleromitrion diffusum (Willd.) R. J. Wang (HD), Scutellaria barbata D. Don (SB), and HD-SB. Results are shown with matching standards of asperulosidic acid methyl ester, kaempferol, rutin, quercetin, apigenin, scutellarin, luteolin, quercetin, and scutebarbatine B. (A) HD, (B) SB, (C) HD-SB.
