Table 2.

Regression equation, linear range, and LLOQ for the probe substrates used in incubations.

Analytes	Regression Equation	Correlation Coefficient (R2)	Linear Range (ng/mL)	LLOQ (ng/mL)
Phenacetin	y = 166.9x + 1.3728	0.9995	200–1400	50
Tolbutamide	y = 176.97x + 0.6415	0.9996	200–1400	50
dextromethorphan	y = 128.91x + 1.3531	0.9999	200–1400	50
chlorzoxazone	y = 110.85x + 4.8935	0.9999	200–1400	50
Testosterone	y = 212.16x + 49.721	0.9994	800–11,200	100