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. 2016 Aug 25;8(8):1548–1560. doi: 10.1080/19420862.2016.1225642

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© The Author(s). Published with license by Taylor & Francis Group, LLC

This is an Open Access article distributed under the terms of the Creative Commons Attribution-Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. The moral rights of the named author(s) have been asserted.

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Figure 2. — Preparative chromatogram of batch “Darwin.” The yellow trace indicates UV absorbance. A1-A5, M, B1-B2 denotes the collection of acidic, the main and basic variants, respectively. The fractionation boundaries are represented by turquoise lines. The gray trace shows the pH.