[Simultaneous determination of eight hydroxyl naphthoquinones in different parts of Arnebiae euchroma by HPLC].

This present study is to develop an HPLC method for simultaneous determination of eight hydroxyl naphthoquinones, shikonin, β-hydroxy-isovalerylshikonin, acetylshikonin, β-acetoxy-isovalerylshikonin, deoxyshikonin, isobutyrylshikonin, β,β'-dimethylacrylshikonin and isovalerylshikonin. The eight constituents were measured on a Waters Xbridge C18 column (4.6 mm×250 mm，5 μm) with isocratic elution of acetonitrile-0.