Figure 2: High-performance liquid chromatography chromatogram of standard solution (a) and Aucklandia lappa extract (b). Costunolide (1); dehydrocostus lactone (2); and alantolactone (3)
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Figure 2: High-performance liquid chromatography chromatogram of standard solution (a) and Aucklandia lappa extract (b). Costunolide (1); dehydrocostus lactone (2); and alantolactone (3)
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