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Table 1 Detailed Information of all sampling sites and the content of six anthraquinone glycosides in rhubarb (mg/g) (n=3)

From: Evaluation of the content variation of anthraquinone glycosides in rhubarb by UPLC-PDA

Sample

Location

Longitude

Latitude

Altitude (m)

AE8G

R8G

E1G

C1G

C8G

E8G

Total

Mean ± SD

R. tanguticum

            

DH01

Maoxian, Sichuan

103.5449

32.16389

2808

10.63

tr

1.99

7.32

13.42

5.19

38.55

46.21 ± 19.25

DH02

Datong, Qinghai

103.6258

32.77226

2771

2.30

7.98

1.29

3.39

3.15

0.50

18.61

DH03

Songpan, Sichuan

101.561

37.15853

3080

10.98

16.63

2.23

5.73

13.91

10.00

59.48

DH04

Aba, Sichuan

102.2242

33.61313

2621

11.97

7.40

3.08

8.48

8.73

3.29

42.95

DH05

Maqu, Gansu

101.8336

36.62261

3440

12.22

9.84

3.82

9.15

11.37

11.11

57.51

DH06

Aba, Sichuan

101.8336

34.62262

2235

5.82

12.44

1.71

4.19

7.17

4.69

36.02

DH07

Xining,Qinghai

101.6145

34.73594

2492

5.83

9.26

3.46

5.95

3.18

2.28

29.96

DH08

Henan, Qinghai

103.1498

36.96756

3534

14.73

7.36

2.38

8.48

13.55

1.92

48.42

DH09

Xunhuan, Qinghai

99.71639

27.8248

3659

11.94

6.26

1.82

15.46

46.99

1.92

84.39

R. officinale

            

DH10

Mianyang, Sichuan

104.505

31.72728

1295

tr

2.39

tr

tr

tr

tr

2.39

26.30 ± 22.98

DH11

Yulong, Yunan

99.46139

27.19084

2553

3.92

5.20

1.14

3.82

1.87

1.65

17.60

DH12

Songpan, Sichuan

102.0491

33.9737

2621

5.08

7.06

0.98

3.75

3.68

0.42

20.97

DH13

Chengdu, Sichuan

103.5372

30.98669

1574

4.71

7.48

1.73

4.76

4.05

3.61

26.34

DH14

Kangding, Sichuan

97.17954

29.95119

3110

9.00

16.02

4.73

15.97

7.40

11.07

64.19

R. palmatum

            

DH15

Dangchang, Gansu

104.2187

34.23639

2243

1.84

6.07

0.66

1.72

5.08

1.33

16.70

35.54 ± 22.22

DH16

Dangchang, Gansu

104.9304

33.96551

2476

2.23

2.73

0.45

3.13

5.27

1.07

14.88

DH17

Tianzhu, Gansu

102.9986

37.31148

2413

3.13

4.65

1.20

5.21

2.15

6.73

23.07

DH18

Zeku, Qinghai

102.7261

35.61356

2946

2.21

6.17

tr

2.75

2.99

0.95

15.07

DH19

Shangri-la , Yunan

102.7132

35.64171

3288

13.67

9.85

3.69

6.23

6.95

7.32

47.71

DH20

Changdu, Tibet

97.17953

31.14529

3388

10.42

11.60

5.24

6.26

2.20

7.20

42.92

DH21

Kangding, Sichuan

101.9349

29.95033

3854

18.33

10.27

5.46

14.79

8.81

18.33

75.99

DH22

Minxian, Gansu

104.037

34.43876

2318

16.01

15.59

4.10

7.51

15.95

9.81

68.97

DH23

Dangchang, Gansu

104.6847

33.95438

1728

2.33

1.87

tr

2.66

3.98

0.86

11.70

DH24

Huzhu, Qinghai

102.9587

36.84461

2534

6.42

6.67

1.41

6.05

9.64

3.08

33.27

DH25

Kangding, Sichuan

103.5449

32.16389

3110

8.72

10.62

4.63

17.03

8.10

7.90

57.00

DH26

Tianzhu, Gansu

103.8949

31.6955

2593

7.15

13.70

2.59

4.07

6.14

8.72

42.37

DH27

Lixian, Gansu

103.6258

32.77226

1895

1.74

2.81

tr

2.91

4.97

tr

12.43

  1. tr: below the LOQ.