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. 2022 Feb 2;414(8):2739–2755. doi: 10.1007/s00216-022-03922-x

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Fig. 6 — Three-dimensional PCA plot of nine tea infusions (scores, mean values n ≥ 6) in relation to the bioaccessibility indices (IVBA) of the polyphenols studied and caffeine. The ellipses show the association of the analytes (loadings) and samples