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

Table 6 The suggested method's effect of additives (100 µg/mL) on the drug levofloxacin determination

Additives	First D1		Rec %	Second D2		Rec %	Third D3		Rec %	Fourth D4		Rec %
	λ(287)nm			λ(287)nm			λ(287)nm			λ(287)nm
	Taken (µg/mL)	Found (µg/mL)		Taken (µg/mL)	Found (µg/mL)		Taken (µg/mL)	Found (µg/mL)		Taken (µg/mL)	Found (µg/mL)
Talc	10	9.9	99	10	9.85	98.5	10	9.85	98.5	10	9.85	98.5
Citric acid	10	9.85	98.5	10	9.95	99.5	10	9.9	99	10	9.77	97.7
Starch	10	9.9	99	10	9.92	99.2	10	9.85	98.5	10	9.85	98.5
Magnesium stearate	10	9.8	98	10	9.97	99.7	10	9.98	99.8	10	9.9	99
Lactose	10	9.75	97.5	10	9.86	98.6	10	9.9	99	10	9.95	99.5
Vinyl pyrrolidone	10	9.95	99.5	10	9.77	97.7	10	9.87	98.7	10	9.8	98

ISSN: 2661-801X