Table 5.
Stability and recovery of seven analytes
|
Analytes |
Stability (RSD,%; n = 6) |
Recovery (%; n = 6) |
|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |
A |
B |
C |
D |
E |
SWD |
THSWD |
XFSWD |
SFZYD |
QLSWD |
|||||
| Mean | RSD (%) | Mean | RSD (%) | Mean | RSD (%) | Mean | RSD (%) | Mean | RSD (%) | ||||||
| Gallic acid |
6.36 |
3.34 |
7.13 |
5.16 |
1.03 |
98.1 |
2.71 |
98.9 |
1.32 |
97.8 |
2.32 |
101.2 |
3.12 |
99.7 |
1.44 |
| Protocatechuic acid |
5.79 |
5.46 |
6.18 |
4.0 |
4.62 |
101.2 |
3.32 |
99.8 |
1.43 |
97.6 |
1.18 |
103.7 |
3.54 |
102.7 |
1.98 |
| Vanillic acid |
3.14 |
3.68 |
6.25 |
8.80 |
2.19 |
96.2 |
1.39 |
97.3 |
1.79 |
102.3 |
1.25 |
92.2 |
2.81 |
103.1 |
2.32 |
| Caffeic acid |
6.61 |
5.10 |
8.50 |
2.47 |
7.87 |
103.8 |
1.48 |
95.8 |
3.24 |
98.3 |
2.50 |
98.6 |
2.44 |
98.2 |
3.16 |
| Paeoniflorin |
6.13 |
3.79 |
7.37 |
8.36 |
4.07 |
97.1 |
3.25 |
98.2 |
2.77 |
95.4 |
1.15 |
94.0 |
1.36 |
95.8 |
2.17 |
| Ferulic acid |
4.54 |
3.74 |
1.31 |
7.65 |
2.10 |
99.7 |
1.22 |
103.2 |
1.94 |
99.3 |
1.43 |
97.5 |
2.65 |
104.6 |
1.89 |
| Senkyunolide I | 6.87 | 2.82 | 2.47 | 8.91 | 4.07 | 96.9 | 2.31 | 98.1 | 2.13 | 98.1 | 2.86 | 94.0 | 1.91 | 98.1 | 2.34 |