Table 2.

Regression equation, linear range, and LLOQs of 10 compounds (n = 6).

Compounds	Regression equation	r 2	Linear range	LLOQ (ng·mL−1)
NCLA	Y = 0.0109X − 0.00382	0.9984	2–6000	2
CLA	Y = 0.0649X + 0.00231	0.9993	1–3000	1
CCLA	Y = 0.00475X − 0.00501	0.9972	2–6000	2
Caffeic acid	Y = 0.0322X − 0.393	0.9937	10–30000	10
Rutin	Y = 0.00247X + 0.00135	0.9983	1–3000	1
Isoquercitrin	Y = 0.00707X + 0.00553	0.9983	1–3000	1
IAB	Y = 0.00264X − 0.00961	0.9952	4–12000	4
IA A	Y = 0.00135X − 0.00307	0.9917	4–12000	4
IAC	Y = 0.0102X − 0.0172	0.9934	2–6000	2
Tussilagone	Y = 0.00801X + 0.00969	0.9964	1–3000	1