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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. 9 — ESI (−) MS, MS², and MS³ spectra of identified saponins in adzuki bean. Peak 10 (A): A-1 MS spectrum of peak 10 ([M−H]⁻), A-2 MS² spectrum of the ion at m/z 971, A-3 MS³ spectrum of the ion at m/z 809. Peak 11 (B): B-1 MS spectrum of peak 11 ([M−H]⁻), B-2 MS² spectrum of the ion at m/z 1133, B-3 MS³ spectrum of the ion at m/z 971; B-4 MS³ spectrum of the ion at m/z 809