Spectrophotometric Determination of Gemifloxacin Mesylate, Moxifloxacin Hydrochloride, and Enrofloxacin in Pharmaceutical Formulations Using Acid Dyes

Table 6

Determination of MXF in its pharmaceutical dosage forms applying the standard addition technique.

Reagent	Taken (μg mL^−1)	Pure drug added (μg mL^−1)	Avelox tablets		Moxiflox tablets		Moxifloxacin tablets
			Total found (μg mL^−1)	Recovery %^a  ± SD	Total found (μg mL^−1)	Recovery % ± SD	Total found (μg mL^−1)	Recovery % ± SD
BCP	2.0	2.0	3.98	99.40 ± 0.56	3.96	99.10±0.62	3.98	99.60±0.48
		6.0	7.98	99.70 ± 0.83	8.06	100.70±0.89	7.98	99.80±1.10
		10	11.89	99.10 ± 1.20	12.02	100.20±1.26	11.92	99.30±1.17
BPB	2.0	4.0	5.98	99.60 ± 0.61	5.97	99.50±0.35	5.96	99.30±0.36
		8.0	9.99	99.90 ± 0.84	9.96	99.60±0.60	9.99	99.90±0.63
		12	14.07	100.50 ± 1.14	13.99	99.90±0.85	14.08	100.60±1.36
BTB	2.0	2.0	3.98	99.50 ± 0.48	3.97	99.20±0.33	4.01	100.20±0.61
		4.0	5.95	99.20 ± 0.92	5.99	99.80±0.65	5.96	99.30±0.84
		8.0	10.04	100.40 ± 1.17	10.01	100.10±0.93	9.95	99.50±1.07
MO	5.0	5.0	9.91	99.10 ± 0.42	9.94	99.40±0.37	9.95	99.50±0.45
		10	15.08	100.50 ± 0.76	15.03	100.20±0.75	14.97	99.80±0.85
		15	19.90	99.50 ± 1.16	19.92	99.60±1.28	19.83	99.15±0.90

aAverage of six determinations.