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.