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Table 1 Basic information of 16 detection points for Raman spectroscopy

From: Guangzhou Tongcao painting in late China Qing Dynasty (1840–1912 AD): technology revealed by analytical approaches

Number Detection area Color
1 Maid’s sleeve Light blue
2 Maid’s collar Deep blue
3 Back of chair Bright green
4 Maid’s hair Black
5 Table leg Orange red
6 The horn of dragon pattern on hostess’s gown White
7 Decorative pattern of floor Light yellow
8 Back of chair Yellow
9 The edge of vase Deep yellow
10 The center of vase Light yellow
11 Leaves of flowers in vase Dark green
12 The mouth of dragon pattern on hostess’s gown Red
13 Decorative pattern of floor Blue
14 The lower hem of hostess’s gown Red
15 Decorative pattern of floor Blue
16 Decorative pattern of floor Yellow