Table 2.

Application of the rate constant method in the quantification of the studied drugs with KMnO₄

Compound	[drug]	K`/S-1
		at 610 nm	at 525 nm
Acarbose	6.195 × 10-6		-9.509 × 10-4
	7.744 × 10-6	-1.474 × 10-3	-9.230 × 10-4
	1.549 × 10-5	-1.350 × 10-3	-9.198 × 10-4
	2.323 × 10-5	-1.297 × 10-3	-8.338 × 10-4
	3.098 × 10-5	-1.188 × 10-3	-7.375 × 10-4
Miglitol	4.826 × 10-6	-5.021 × 10-4	-1.005 × 10-3
	9.652 × 10-6	-4.982 × 10-4
	1.931 × 10-5	-4.737 × 10-4	-9.557 × 10-4
	2.896 × 10-5	-4.506 × 10-4	-9.343 × 10-4
	3.861 × 10-5		-9.112 × 10-4
	4.826 × 10-5	-4.291 × 10-4	-8.245 × 10-4

K`, the pseudo first order rate constant.