Table 2.

Regression curves, linearity, LOD and LOQ of phytochemical compounds

	Compounds	Retention times (min)	Detection wavelength (nm)	*Linear range	Equation	R2	*LOD	*LOQ
1	m-coumaric acid	14.1	285	20–100	y = 16390× + 29,326	0.965	0.66	2.20
2	Chlorogenic acid	5.1	335	20–100	y = 61445× + 44,857	0.998	0.09	0.29
3	p-coumaric acid	11.5	285	20–100	y = 14939×− 38,526	0.999	2.77	9.25
4	Gallic acid	3.7	265	20–100	y = 78251× + 22,342	0.998	0.18	0.59
5	Caffeic acid	7.3	335	20–100	y = 12470×− 20,443	0.998	1.43	4.78
6	4-hydroxy benzoic acid	6.8	265	20–100	y = 10438× + 24,233	0.995	0.94	3.14
7	o-coumaric acid	16.5	265	20–100	y = 83028× + 22,761	0.999	0.42	1.39
8	Ferulic acid	11.6	335	20–100	y = 14461×− 26,906	0.997	2.71	9.02
9	Vanillic acid	7.5	265	20–100	y = 85509×− 20,064	0.999	0.81	2.69
10	Phloridzin	18.1	285	20–100	y = 58365× + 14,613	0.997	0.25	0.84
11	3-hydroxy benzoic acid	7.8	285	20–100	y = 12214× + 59,056	0.992	1.59	5.32
12	Rutin	20.4	265	20–100	y = 38189× + 16,436	0.999	0.14	0.48
13	Valerenic acid	12.7	225	5–25	y = 38566×− 82,776	0.994	0.09	0.30

^*Values expressed in µg/mL