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Heritage Science

Table 6 The match results of NMF

From: Quantitative analysis of mixed pigments for Chinese paintings using the improved method of ratio spectra derivative spectrophotometry based on mode

Components

Result 1

Result 2

Result 3

NMF 1

Terracotta (Fe2O3)

Ocher (Fe2O3)

Orpiment (As2S3)

NMF 2

Lead powder (Pb(OH)2·2PbCO3)

Yunbai

Calcite (CaCO3)

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