Table 1: Intraday and interday accuracy and precision.

OLP injected, μg mL−1Intraday accuracy and precision (n = 7)Interday accuracy and precision (n = 7)
OLP founda, μg mL−1RE, %RSDb, %RSDc, %OLP founda, μg mL−1RE, %RSDb, %RSDc, %

5.05.142.800.110.115.091.80.150.16
10.010.090.900.280.1010.050.500.280.20
15.015.130.870.260.2115.050.330.460.31

Mean value of seven determinations.
bBased on peak area.
cBased on retention time.