Spectrophotometric Methods for Simultaneous Determination of Oxytetracycline HCl and Flunixin Meglumine in Their Veterinary Pharmaceutical Formulation

Table 2

Result obtained for the determination of Oxytetracycline HCl and Flunixin Meglumine in laboratory prepared mixtures by the proposed spectrophotometric methods.

Conc. of lab. mix.; (µg/mL)		Recovery % of OXY				Recovery % of FLU
FLU	OXY	Dual WL	D^1	ΔP	D R	Dual WL	D^1	ΔP	DR
10	10	101.80	100.74	102.11	101.33	98.04	97.95	98.95	97.31
10	20	100.06	100.14	100.13	100.82	97.73	98.52	97.72	98.41
20	10	100.84	101.20	101.21	100.30	99.64	100.40	98.72	98.83
10	35	101.16	100.87	101.06	101.95	100.20	100.42	99.18	98.72
Mean		100.97	100.74	101.13	101.10	98.90	99.32	98.64	98.32
SD		0.72	0.44	0.81	0.71	1.20	1.28	0.64	0.70
RSD%		0.72	0.44	0.80	0.70	1.22	1.29	0.65	0.71