Research Article

Pharmacokinetics of Quercetin-Loaded Methoxy Poly(ethylene glycol)-b-poly(L-lactic acid) Micelle after Oral Administration in Rats

Table 2

Stability of QUT study under different storage conditions in rat plasma .

Storage conditionsConcentration (ng/mL)Precision
(%, RSD)
Accuracy
(%, RE)
AddedMeasured (mean ± SD)

Three freeze-thaw cycles7.57.37 ± 0.374.97−1.75
750769.67 ± 26.963.602.62
15001604.67 ± 72.334.516.98

−20°C for 30 days7.57.76 ± 0.476.103.49
750776.17 ± 39.355.073.49
15001616.33 ± 107.326.647.76

Room temperature for 24 h7.57.39 ± 0.486.51−1.49
750743.33 ± 32.964.43−0.89
15001590.00 ± 16.251.026.00