Research Article

Comparative Pharmacokinetic Studies of Four Ginsenosides in Rat Plasma by UPLC-MS/MS after Oral Administration of Panax quinquefolius-Acorus gramineus and Panax quinquefolius Extracts

Table 2

The regression equations, linear ranges, and LLOQs of the four compounds.

CompoundLinear regression equationLinear range (ng/mL)rLLOQ (ng/mL)

Rb1Y = 2.823 × 10−3X + 9.654 × 10−23.6–11390.99873.6
Rb2Y = 7.729 × 10−4X + 2.824 × 10−31.6–500.00.99891.6
RdY = 7.774 × 10−3X + 9.646 × 10−21.2–390.20.99791.2
ReY = 4.036 × 10−4X + 3.149 × 10−32.5–788.50.99782.5