Nominal conc. (µg/ml) Intraday (n=5) Interday (n=5)
Found conc. Accuracy (%) Precision Found conc. Accuracy (%) Precision
(mean ± SD) (%CV) (mean ± SD) (%CV)
1 0.98 ± 0.02 97.94 1.96 0.98 ± 0.03 97.87 3.23
3 3.12 ± 0.04 103.93 1.42 3.20 ± 0.07 106.54 2.07
75 75.08 ± 1.16 100.11 1.55 77.20 ± 3.26 102.93 4.22
150 146 ± 0.9 97.50 0.59 145 ± 3.1 96.73 2.13
Table 1: Intraday and interday accuracy and precision of ertapenem in serum.