Table 1. Linearity, LOD, and LOQ of Seven Bioactive Compounds in KXP.

compound	regression equation	r	linear range (μg/mL)	LOD (μg/mL)	LOQ (μg/mL)
POL	y = 28.35x – 0.477	0.9998	0.20–10.0	0.05	0.10
DISS	y = 33.44x + 16.31	0.9990	0.60–60.0	0.01	0.03
AAS	y = 129.6x + 19.71	0.9999	1.00–50.0	0.10	0.20
BAS	y = 89.86x – 92.17	0.9999	4.00–200	0.08	0.20
DTU	y = 26.97x + 31.52	0.9999	1.00–100	0.10	0.40
PAC	y = 16.53x + 13.46	0.9999	1.00–200	0.10	0.40
DTR	y = 50.32x – 6.340	0.9997	0.20–10.0	0.05	0.10