Determination of levofloxacin, norfloxacin, and moxifloxacin in pharmaceutical dosage form or individually using derivative UV spectrophotometry

Table 5 Precision Study moxifloxacin

Sample No	% Assay	Intra-day assay			Inter-day assay
Sample No	(repeatability)	1st h	3^rd h	8th h	1st day	3rd day	5th day	7th day
1	99.5	99.5	100.2	99.5	100.6	101.25	99.5	99.5
2	100.2	99.8	100.25	99.25	99.2	99.2	99.7	99.2
3	100.6	100.2	100.5	100.6	100.5	99.4	101.25	99.6
4	101.5	100.8	101.6	99.7	100.6	99.8	100.4	100.52
5	100.3	101.6	99.75	99.2	100.7	100.5	99.25	101.2
6	99.25	99.8	99.65	99.9	101.25	101.25	98.9	100.6
Mean ± SD	100.25 ± 0.80	100.0 ± 0.78	100.2 ± 0.70	99.6 ± 0.51	100.6 ± 0.67	100.15 ± 0.90	99.6 ± 0.85	100.06 ± 0.78
% RSD	0.834666	0.561991	0.654949	0.587899	0.684957	0.92590046	0.792017	0.5692978

ISSN: 2661-801X