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

Table 4.

Precision, repeatability of seven analytes

Analytes
Precision (RSD,%)
Repeatability (RSD,%; n = 6)
  Intraday (n = 6) Interday (n = 6) SWD SFZYD XFSWD THSWD QLSWD
Gallic acid
1.75
1.78
1.81
1.26
2.84
3.32
1.31
Protocatechuic acid
0.76
1.21
3.16
1.90
2.72
4.18
3.19
Vanillic acid
1.31
1.55
1.79
1.05
2.26
3.97
2.80
Caffeic acid
0.98
0.97
2.27
2.47
1.60
4.52
3.04
Paeoniflorin
1.06
2.01
2.72
3.58
2.38
3.96
2.19
Ferulic acid
0.88
1.05
2.19
3.01
1.26
2.95
2.22
Senkyunolide I 1.16 1.12 2.22 3.97 1.43 1.82 3.75