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. 2017 Sep 22;11:93. doi: 10.1186/s13065-017-0317-x

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© The Author(s) 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 11 — ESI (−) MS, MS², and MS³ spectra of identified saponins in adzuki bean. Peak 14 (E): E-1 MS spectrum of peak 14 ([M−H]⁻), E-2 MS² spectrum of the ion at m/z 779, E-3 MS³ spectrum of the ion at m/z 617. Peak 15 (F): F-1 MS spectrum of peak 15 ([M−H]⁻), F-2 MS² spectrum of the ion at m/z 809, F-3 MS³ spectrum of the ion at m/z 647