|
Precision of the intra-day and inter-day measurements |
||||||
| Conc. μg/ml |
Intra-day a |
Inter-day b |
||||
| Peak areas Mean (SD) |
RSD % |
Precision % |
Peak areas Mean (SD) |
RSD % |
Precision % |
|
|
|
||||||
| Low (4.08) |
63.0 (0.8) |
1.36 |
95.90% |
65.3 (0.5) |
0.88 |
95.08% |
| Mid (20.42) |
303.1 (0.4) |
0.15 |
95.48% |
309.9 (1.8) |
0.60 |
95.80% |
| High (122.52) |
1870.0 (7.5) |
0.39 |
97.55% |
1890.0 (17.8) |
0.95 |
98.59% |
|
Note: a: n = 5; b: n = 6 (twice a day for three consecutive days). | ||||||
Xie et al. Chinese Medicine 2008 3:6 doi:10.1186/1749-8546-3-6 |
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