Spiked concentration (μg/mL)
ACN: Phosphate buffer(58:42)
ACN: Phosphate buffer (62:38)
Measured concentration
± S.D.,
R.S.D. (%)
20
20.160
0.078
0.387
20.117
0.155
0.771
40
40.086
0.161
0.402
40.119
0.392
0.977
60
60.034
0.311
0.518
59.917
0.276
0.462
