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. 2016 Aug 31;11:4275–4285. doi: 10.2147/IJN.S109031

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 =3.5473x +0.2513 0.9955 200–1,400 50
Tolbutamide y =0.0198x −1.0885 0.9956 200–1,400 50
Testosterone y =0.0129x −8.1329 0.9992 800–11,200 100

Abbreviation: LLOQ, lower limit of quantitation.