Table 3.

Analysis of laboratory prepared mixture of RDV and MFX by the proposed methods

Method	Laboratory prepared mixture (µg/mL)				% Recovery*
	RDV		MFX		RDV	MFX
Ratio derivative	1		2		98.18	98.96
	1		4		100.78	99.13
	2		4		100.32	100.87
	2		8		99.03	101.02
	4		4		101.72	99.13
	Mean ± %RSD				100.01 ± 1.406	99.82 ± 1.033
Ratio difference	1			2	101.77	99.65
	1			4	100.08	101.55
	2			4	100.71	98.37
	2			8	101.67	101.08
	4			4	99.98	98.14
	Mean ± %RSD				100.84 ± 0.842	99.76 ± 1.547
Mean centering	1			2	101.38	100.79
	1			4	99.36	101.86
	2			4	100.42	98.72
	2			8	101.50	100.98
	4			4	99.48	98.12
	Mean ± %RSD				100.43 ± 1.007	100.10 ± 1.593
Area under curve	1	2			98.55	101.51
	1	4			100.36	98.18
	2	4			99.88	98.50
	2	8			100.06	99.02
	4	4			98.27	100.76
	Mean ± %RSD				99.42 ± 0.952	99.59 ± 1.468
Q- analysis	1	2			102.08	99.75
	1	4			99.71	100.80
	2	4			100.70	98.71
	2	8			101.10	101.32
	4	4			100.90	100.91
	Mean ± %RSD				100.90 ± 0.844	100.30 ± 1.053
Bivariate	1	2			98.48	98.76
	1	4			98.87	101.88
	2	4			101.63	101.30
	2	8			98.76	100.92
	4	4			99.72	100.22
	Mean ± %RSD				99.29 ± 0.887	100.62 ± 1.191

* Average of three determinations