Table 2

Mean extraction recoveries and matrix effects of β-E in rat plasma (n = 5)

Nominal concentration (μg/mL)Calculated concentration (μg/mL)Recovery (%)Matrix effect (%)
LQC (0.6)0.6 ± 0.197.0 ± 2.196.3 ± 6.0
MQC (2)1.9 ± 0.196.6 ± 1.299.33 ± 1.1
HQC (10)10.4 ± 0.2101.6 ± 2.3101.6 ± 1.3

LQC, low quality control; MQC, middle quality control; HQC, high quality control.