Table 6.

Precision data of the HPLC assay for metronidazole ^a.

Nominal Concentration (µg/mL)	Found Concentration (µg/mL)	% CV	% of Nominal Concentration
Intra-day
8	7.90 ± 0.19	2.41	98.78
10	10.35 ± 0.28	2.76	103.59
12	11.91 ± 0.32	2.72	99.29
14	13.87 ± 0.27	1.96	99.07
16	16.08 ± 0.34	2.13	100.50
18	17.36 ± 0.13	0.785	96.47
20	20.51 ± 0.15	0.741	102.55
Inter-day
8	7.97 ± 0.81	10.19	99.64
10	10.55 ± 1.36	12.89	105.59
12	12.07 ± 1.23	10.21	100.63
14	14.15 ± 1.31	9.27	101.09
16	16.08 ± 1.12	6.99	100.53
18	17.69 ± 1.59	8.99	98.32
20	20.96 ± 1.85	8.86	104.82

^a Data are given as mean ± SD (n = 7).