Table 3 The data of precision evaluation of chromatographic system (n=5, mean)
From: pKa determination of oxysophocarpine by reversed - phase high performance liquid chromatography
No. | MeOH-phosphate | pH | t R | RSD (%) | Area | RSD (%) |
|---|---|---|---|---|---|---|
1 | 20:80 (v/v) | 6.2 | 8.750 | 0.08 | 1012394 | 1.08 |
2 | 15:85 (v/v) | 6.0 | 15.034 | 0.20 | 969174 | 0.42 |
3 | 10:90 (v/v) | 6.0 | 30.60 | 0.42 | 867097 | 1.39 |