Table 2.

Robustness assessment of the developed TLC–densitometric methods for determination of IMD and DLM

Robustness parameter	SD of peak area		% RSD
	IMD	DLM	IMD	DLM
(1) Volume of mobile phase
98 ml	144.07	100	2.87	2.78
100 ml	85.26	31.18	1.68	0.83
102 ml	122.46	40.40	2.48	0.97
(2) Duration of saturation
25 min	296.45	26.93	1.46	1.43
30 min	227.33	11.89	1.11	0.61
35 min	297.58	37.55	1.60	1.97