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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Correlation of calculated phenolic OH group contents using three measuring modes. DMSO-d6 vs. KBr (left); neat vs. KBr pellets (middle); neat vs. DMSO-d6 (right). Error bars mark the min/max values.