High Throughput Quantitative Bioanalytical LC/MS/MS Determination of Gemifloxacin in Human Urine

Table 2

Intraday and interday precision and accuracy of GFX (QC) samples.

Day of analysis	GFX measured concentration in human urine
	LQC (15 ng mL^−1)	MQC (150 ng mL^−1)	HQC (400 ng mL^−1)
Day 1	14.73	154.57	400.96
	14.89	155.05	404.32
	15.16	154.58	399.73
	14.99	153.24	402.41
	14.89	153.60	402.91
	14.71	154.78	403.24
Day 2	14.68	154.43	402.69
	14.73	153.67	402.22
	14.82	153.89	401.68
	14.55	154.26	400.98
	14.75	154.43	399.54
	14.95	154.22	398.32
Day 3	14.89	153.62	400.25
	14.56	154.57	401.15
	14.77	154.32	402.66
	14.63	153.51	403.56
	14.48	153.17	401.12
	14.85	153.42	401.23
Mean	14.78	154.07	401.61
Standard deviation (SD)	0.17	0.57	1.55
Precision (CV) (%)	1.14	0.38	0.39
Accuracy	98.53	102.72	100.40