A Multivariate Methodological Workflow for the Analysis of FTIR Chemical Mapping Applied on Historic Paint Stratigraphies

Figure 8

Sample PO1—(a) PC45 score plot: cluster highlighted in red indicates the objects localised within the PC4 score map (layer 3); (b) PC45 loading plot; (c) PC4 score map; (d) average spectral profile extracted from layer 3.

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(b)

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