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Table 5 Detected compounds in modern samples

From: Twentieth century Iranian carpets: investigation of red dye molecules and study of traditional madder dyeing techniques

Area_C values of the compounds at 255 nm/mg fibre
Retention time (minutes): 11.8 12.3 17.2 18.6 19.4 22.3 25.3 26.7 Total absorbed compounds
Dye compounds: Ruberythic acid Rubiadin-3-β-glucoside Anthragallol Alizarin Pseudopurpurin + munjistin Purpurin Rubiadin Nordamnacanthal
DG1_B02     5.53   2.07   0.23 7.83
ADG1_B02     0.83   0.23    1.07
DG1_B04     2.57   1.07   0.07 3.70
ADG1_B04     1.37   0.47    1.83
DG1_B05     5.93   2.83   0.57 9.33
ADG1_B05     0.70   0.30    1.00
DG1_B06     3.53   1.23   0.07 4.83
ADG1_B06     1.13   0.37    1.50
DG1_B09     4.77   2.10   0.23 7.10
ADG1_B09     1.37   0.43    1.80
DG1_B14     3.70   1.60   0.50 5.80
ADG1_B14     0.97   0.30    1.27
DG1_B15     3.47   0.63   0.07 4.17
ADG1_B15     6.13 0.23 1.97   0.87 9.20
DG1_B20     9.63   2.87   0.40 12.90
ADG1_B20     5.77 0.30 1.37   0.67 8.10
DG1_B21    1.33 19.27   7.53   1.37 29.50
ADG1_B21    0.10 6.17 0.63 1.60   0.40 8.90
DG2_B02 1.53 1.23   6.43   7.03   0.90 17.13
ADG2_B02 1.73 1.07 0.27 9.83 0.83 7.03 0.13 0.53 21.43
DG2_B04 1.30 0.97   3.10   3.97   0.33 9.67
ADG2_B04 0.97 0.43 0.20 4.80 0.73 4.53 0.03 0.27 11.97
DG2_B05 0.57 0.30   3.27   2.40   0.30 6.83
ADG2_B05 0.37 0.10 0.07 7.10 1.57 3.17 0.03 0.47 12.87
DG2_B06 0.63 0.47   2.13   2.40   0.27 5.90
ADG2_B06 1.53 0.83 0.27 9.33 0.93 7.07 0.13 0.70 20.80
DG2_B09 0.00 0.00   6.27   3.07   1.17 10.50
ADG2_B09 0.03   0.07 8.13 0.90 4.00 0.07 0.77 13.97
DG2_B14 0.20 0.07   2.00   1.30   0.23 3.80
ADG2_B14 0.10 0.03 0.03 2.03 0.07 0.90   0.30 3.47
DG2_B15 0.20 0.07   2.27   2.50   0.53 5.57
ADG2_B15 0.20   0.10 4.80 0.43 2.50 0.03 0.40 8.47
DG2_B20 0.40 0.20   5.27   4.40   0.83 11.10
ADG2_B20 0.23 0.07 0.10 5.47 0.43 2.33 0.03 0.43 9.10
DG2_B21 0.53 0.33   3.17   2.67   0.33 7.03
ADG2_B21 0.40 0.13 0.10 5.23 0.37 3.00 0.03 0.33 9.60
  1. Area_c sum of peak areas (only identified peaks)