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. 2018 Dec 11;9:1377. doi: 10.3389/fphar.2018.01377

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Copyright © 2018 Zhao, Dai, Li, Li, Qin and Chen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Chromatograms of astragalosides in different conditions: (A) UPLC-QDA chromatograms of astragalosides in different ion channels before addition of ammonia; (B) UPLC-QDA chromatograms of astragalosides in different ion channels after addition of ammonia; (C) UPLC-QDA chromatograms of Astragali radix (AR) extracts separated on CORTECS T3 column; (D) HPLC-ELSD chromatograms of AR extracts on YMC C18 column; (E) UPLC-QDA chromatograms of standard compounds; (F) UPLC-QDA chromatograms of AR samples. (S1) astragaloside IV; (S2) astragaloside III; (S3) astragaloside II; (S4) isoastragaloside II; (S5) astragaloside I; (S6) isoastragaloside I; (S7) acetylastragaloside I; (N1) ginsenoside Rg1.