Table 2.
Quantitative UHPSFC‐DAD and UHPLC‐DAD results for compounds 1‐3, 5‐8 in Verbenae herba samples VO‐1 ‐ VO‐3; all values expressed in mg per g plant material (with RSD in Parentheses; n = 3)
| Compound | 1 | 2 | 3 | 5* | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|
| UHPSFC assay | |||||||
| VO‐1 | 3.3 (1.4) | 10.5 (1.1) | 1.8 (2.6) | 3.0 (2.1) | 2.6 (2.1) | 7.6 (2.2) | 7.0 (1.9) |
| VO‐2 | 2.3 (1.0) | 27.6 (0.6) | 1.9 (0.9) | 2.3 (1.5) | 5.3 (1.0) | 19.4 (1.8) | 11.3 (1.8) |
| VO‐3 | 4.7 (1.4) | 22.1 (0.7) | 2.1 (1.8) | 2.7 (2.1) | 4.4 (1.1) | 9.4 (1.1) | 9.0 (1.8) |
| UHPLC assay | |||||||
| VO‐1 | 3.3 (0.7) | 10.6 (0.7) | 1.7 (1.1) | 3.8 (2.8) | 2.4 (2.2) | 7.8 (1.0) | 7.3 (2.8) |
| VO‐2 | 2.3 (1.3) | 28.1 (0.4) | 2.0 (0.4) | 5.1 (0.7) | 5.3 (0.6) | 19.5 (1.8) | 11.7 (1.3) |
| VO‐3 | 4.7 (1.8) | 22.9 (1.3) | 2.2 (1.2) | 4.1 (1.0) | 4.3 (0.4) | 9.8 (1.0) | 9.6 (1.1) |
*results of the UHPLC assay are very likely overestimated due to a possible co‐elution