|
Recovery of eight markers in Dachengqi Tang samples (n = 3) |
||||
| Marker |
Concentrations (μg/ml) |
Concentration measured (μg/ml, mean (SD)) |
Recoverya (%) |
RSD b (%) |
|
|
||||
| Naringin |
5.0 |
4.87 (0.09) |
97.4 |
1.8 |
| 50.0 |
50.28 (1.26) |
100.6 |
2.5 |
|
| 150.0 |
148.95 (1.81) |
99.3 |
1.2 |
|
| Hesperidin |
13.9 |
13. 79 (0.38) |
99.2 |
2.8 |
| 139.0 |
142.42 (2.26) |
102.5 |
1.6 |
|
| 417.0 |
419.84 (3.32) |
100.7 |
0.7 |
|
| Aloe emodin |
3.66 |
3.76 (0.11) |
102.7 |
2.9 |
| 36.6 |
36.17 (1.15) |
98.8 |
3.2 |
|
| 109.8 |
111.73 (3.29) |
101.8 |
2.9 |
|
| Rhein |
3.5 |
3.41 (0.09) |
97.4 |
2.6 |
| 35.0 |
33.47 (0.96) |
95.6 |
2.9 |
|
| 105.0 |
107.68 (1.41) |
102.6 |
1.3 |
|
| Honokial |
2.1 |
2.15 (0.07) |
97.6 |
3.3 |
| 10.5 |
10.18 (0.23) |
97.0 |
2.3 |
|
| 60.3 |
61.24 (1.32) |
101.6 |
2.2 |
|
| Magnolo |
l 4.2 |
4.16 (0.11) |
99.0 |
2.6 |
| 42.0 |
43.42 (1.24) |
103.4 |
2.9 |
|
| 126.0 |
126.61 (1.86) |
100.5 |
1.5 |
|
| Emodin |
2.2 |
2.24 (0.05) |
101.8 |
2.2 |
| 22.0 |
21.54 (0.53) |
97.9 |
2.5 |
|
| 66.0 |
67.28 (1.23) |
101.9 |
1.8 |
|
| Chrysophanol |
2.06 |
2.11 (0.06) |
102.4 |
2.8 |
| 20.6 |
20.15 (0.21) |
97.8 |
1.0 |
|
| 61.8 |
63.42 (1.26) |
102.6 |
2.0 |
|
|
a Recovery (%) = mean of measured concentration/added concentration × 100 b RSD (%) =(SD/mean) × 100 | ||||
Tang et al. Chinese Medicine 2008 3:5 doi:10.1186/1749-8546-3-5 |
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