Table 3. Precision data of analytical method for p-coumaric acid in Allium hookeri Thwaites 70% ethanol extract and Curcuma longa 30% ethanol extract complex

Precision Concentration Recovery (%) Mean±SD1) RSD (%)2)
Repeatability 1.0 106.2 106.8±0.4 0.4
106.9
106.6
107.3
106.8
106.8
Intermediate precision 1.0 106.4 105.9±0.3 0.3
105.9
105.3
106.2
105.6
105.9
1.0 105.4 105.8±0.2 0.1
105.8
105.7
106.1
105.9
105.7
Each values was the mean±SD (n=3).
Relative standard deviation.