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. 2013 Mar 1;8:5. doi: 10.1186/1749-8546-8-5

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