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Table 3 Regression equations, linear ranges and LLOQs of the analytes in plasma

From: Pharmacokinetics of five phthalides in volatile oil of Ligusticum sinense Oliv.cv. Chaxiong, and comparison study on physicochemistry and pharmacokinetics after being formulated into solid dispersion and inclusion compound

Analyte

Linear

range (ng/ml)

Regression equation

r

LLOQ

SA

84.33 ~ 5397.40

y = 2.4 × 10−3x-1.2 × 10− 1

0.9972

84.33

NBP

5.12 ~ 327.92

y = 1.0 × 10−3x-1.1 × 10− 3

0.9996

5.12

NOL

25.16 ~ 1610.40

y = 3.6 × 10−3x-8.9 × 10− 2

0.9940

25.16

ZL

90.42 ~ 5787.01

y = 1.0 × 10−5x-5.0 × 10−5

0.9960

90.42

BP

5.70 ~ 364.48

y = 2.5 × 10−3x-3.3 × 10−2

0.9953

5.70