Table 5.

Quantitative methods data.

Analyte	MRM Pair (Quantifier Ion, m/z)	Collision Energy (eV)	Standard Curve Equation	Linearity (R2)	LOD (ng/mL)	LOQ (ng/mL)
Luteolin	285 → 133	−40	y = 427x − 731	0.9996	3	8
Luteolin-7-glycoside	447 → 285	−34	y = 301x + 1.45 × 103	0.9998	1	2
Chrysoeriol	299 → 284	−28	y = 568x + 3.23 × 104	0.9999	2.5	5
Chicoric acid	473 → 311	−16	y = 12.1x + 4.24 × 103	0.9996	10	100

MRM–multiple reaction monitoring; LOD–limit of detection; LOQ–limit of quantitation.