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Table 1 Spectra data and the attribution results of 24 peaks of serum fingerprints after oral administration of Erhuang decoction

From: Attribution and identification of absorbed components by HPLC-DAD-ESI-MS after oral administration of Erhuang decoction

No.

tR/min

λmax/nm

Attribution

1

14.3

280

Original form compounds existed in licorice

2

21.4

248

Original form compounds existed in licorice

3

22.4

—

Original form compounds existed in licorice and the metabolites of Scutellaria baicalensis

4

23.8

252

Original form compounds existed in Coptis chinensis and licorice; metabolites of Scutellaria baicalensis

5

25.7

260

Original form compounds existed in licorice and the metabolites of Scutellaria baicalensis and licorice

6

27.8

275

Control serum

7

29.8

275

Original form compounds existed in Coptis chinensis and licorice; metabolites of Scutellaria baicalensis

8

31.7

272

Metabolites of licorice and Scutellaria baicalensis

9

34.5

290

Original form compounds existed in Scutellaria baicalensis and metabolites of licorice

10

37.7

276

Original form compounds existed in licorice

11

41.3

277

Original form compounds existed in Scutellaria baicalensis and licorice

12

44.5

360

Control serum

13

46.0

270

Original form compounds existed in Scutellaria baicalensis

14

46.8

275

Original form compounds existed in Scutellaria baicalensis and metabolites of licorice

15

47.2

270

Original form compounds existed in Coptis chinensis

16

49.3

276

Original form compounds existed in Scutellaria baicalensis, Coptis chinensis, and licorice

17

50.0

275

Original form compounds existed in Scutellaria baicalensis, Coptis chinensis, and licorice

18

59.3

273

Original form compounds existed in Coptis chinensis

19

63.6

274

Original form compounds existed in Coptis chinensis and licorice

20

76.3

277

Original form compounds existed in Scutellaria baicalensis

21

79.0

265

Original form compounds existed in licorice

22

83.1

273

Original form compounds existed in Scutellaria baicalensis and licorice

23

84.4

272

Original form compounds existed in Scutellaria baicalensis

24

94.4

250

Original form compounds existed in Licorice

  1. Note: λmax means maximum absorption wavelength