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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)