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. 2019 Sep 10;11(8):1358–1366. doi: 10.1080/19420862.2019.1658492

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© 2019 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-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way.

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Figure 1. — (a) The influence of sodium and potassium content on mass spectral quality as depicted by an overlay of the deconvoluted mass spectra of the NIST mAb light chain subunit obtained using as-received DFA and distilled DFA and (b) ICP-MS quantitation for as-received (reagent-grade) versus distilled DFA. Separations were performed with a high coverage phenyl-bonded superficially porous silica 450 Å, 2.7 μm, 2.1 × 50 mm column using a flow rate of 0.2 mL/min, column temperature of 80°C, and 0.25 μg mass loads.