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Table. 1.

Table. 1.

Intra-day and inter-day precision

Compound Matrix Spiked concentration, µg/mL Within-day (N=15) Between-day (N=15)
Mean±SD, µg/mL RSD, % Mean±SD, μg/mL RSD, %
Meropenem Plasma 0.5 0.52±0.04 8.5 0.49±0.05 9.1
3.75 3.85±0.34 8.7 3.67±0.22 5.9
30 30.38±2.86 9.4 30.57±3.15 10.3
Meropenem CSF 0.75 0.72±0.03 4.2 0.76±0.04 5.7
3.75 3.71±0.20 5.3 3.69±0.25 6.8
30 30.29±1.81 6.0 30.77±2.12 6.9
Linezolid Serum 0.5 0.48±0.04 8.3 0.51±0.06 11.6
3.75 3.64±0.27 7.5 3.74±0.26 7.1
30 29.48±1.68 5.7 31.10±2.70 8.7
Linezolid CSF 0.75 0.70±0.03 5.0 0.73±0.04 5.1
3.75 3.69±0.22 6.0 3.81±0.23 6.1
30 31.39±1.75 5.6 32.43±1.81 5.6

Abbreviations: RSD, relative standard deviation; CSF, cerebrospinal fluid.

Ann Lab Med 2024;44:174~178 https://doi.org/10.3343/alm.2023.0250

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