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. 2024 Sep 18;131(8):1298–1308. doi: 10.1038/s41416-024-02739-y

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© Waters Technologies Corporation and The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — Representative REIMS spectra from two quality control materials analyzed: a single-source pork liver and b NIST meat homogenate. PCA plots of pork liver quality control data acquired at all sites c previously-acquired pork liver sampling points analyzed at C3 by 7 analysts are included in comparison to all quality control data acquired across sites in (c) and in comparison to pork liver quality control data acquired only at C3 (d).