Neuroprotective Effect of Modified Xijiao Dihuang Decoction against Oxygen-Glucose Deprivation and Reoxygenation-Induced Injury in PC12 Cells: Involvement of TLR4-MyD88/NF-κB Signaling Pathway

Table 1

Concentration, calibration curve, regression data, LODs, and LOQs for paeoniflorin, albiflorin, and oxypaeoniflorin by HPLC.

Compounds	Concentration (%)	Calibration curve		LOD (μg)	LOQ (μg)
Oxypaeoniflorin	0.019 ± 0.002	= 1E + 06 + 132000	0.9997	0.02	0.07
Albiflorin	0.276 ± 0.018	= 32176 + 211664	0.9993	0.25	0.70
Paeoniflorin	0.232 ± 0.031	= 110720 + 42996	0.9994	0.46	0.88