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Repeatability of the method.
| FA content, ng/μl | |||||||
|---|---|---|---|---|---|---|---|
|
|
|||||||
| Source | Test 1 | Test 2 | Test 3 | Test 4 | Test 5 | Mean | RSD, % |
| AS | 1.25 | 1.29 | 1.24 | 1.30 | 1.28 | 1.28 | 2.04 |
| DBT | 2.08 | 2.09 | 2.08 | 2.03 | 2.07 | 2.07 | 1.15 |
| DST | 2.07 | 2.09 | 2.12 | 2.27 | 2.17 | 2.14 | 3.74 |
FA, ferulic acid; AS, Radix Angelicae Sinensis; DBT, Danggui-Buxue-Tang; DST, Danggui-Sini-Tang.
