Table 6.

Application of the proposed methods for the determination of the studied drugs in their raw materials

Compound	Proposed methods			Reference methods (30, 31)
	Amount taken (μg/ml)	Amount found (μg/ml)	Recovery (%)	Amount taken (μg/ml)	Recovery (%)
At 610 nm
Acarbose	4.0	3.978	99.45
	5.0	4.919	98.38
	10.0	10.135	101.35
	15.0	15.039	100.26
	20.0	19.926	99.63
x ± S.D.			99.81 ± 1.093	99.20 ± 0.400
t			0.906	(2.447)a
F			7.47	(19.25)
Miglitol	1.0	1.021	102.10
	2.0	2.015	100.75	60.0	101.00
	4.0	3.937	98.43	80.0	98.50
	6.0	6.019	100.32	100.0	100.61
	8.0	8.000	100.00
	10.0	10.009	100.09
x ± S.D.			100.28 ± 1.189	100.04 ± 1.350
t			0.274	(2.365)a
F			1.29	(19.30)
At 525 nm
Acarbose	4.0	4.039	100.98
	5.0	4.950	99.00
	100	10.027	100.27
	15.0	14.971	99.81
	20.0	20.013	100.06
x ± S.D.			100.02 ± 0.719	99.20 ± 0.400
t			1.779	(2.447)a
F			3.23	(19.25)
Miglitol	2.0	1.967	98.35
	4.0	4.045	101.13	60.0	101.00
	6.0	6.067	101.12	80.0	98.50
	8.0	8.052	100.65	100.0	100.61
	10.0	9.911	99.11
x ± S.D.			100.07 ± 1.270	100.04 ± 1.350
t			0.032	(2.447)a
F			1.13	(19.25)

Each result is the average of three separate determinations.

^aFigures in parentheses are the tabulated t and F values, respectively at p=0.05 (32).