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Heritage Science
Fig. 3 | Heritage Science

Fig. 3

From: The use of infrared spectroscopy and chemometrics to investigate deterioration in vegetable tanned leather: potential applications in heritage science

Fig. 3

A, B PCA scores plots of the full spectrum analysis showing changes over time across PC1 and PC2 (A) and between control and degraded samples across PC3 (B). C, D PCA scores plots of the analysis of the 800–1800 cm−1 region, showing changes over time across PC1 and PC2 (C) and between control and degraded samples across PC3 (D)

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