Table 7.

Robustness results of the proposed HPTLC-densitometric method.

Parameter	Exp. Change	CFZ			MFC			SDD
		Rf A	T B	K` C	Rf A	T B	K` C	Rf A	T B	K` C
Mobile phase composition (ethyl acetate: methanol: triethylamine, v/v/v)	50.1: 29.9: 0.9 (v/v/v)	0.28	1.06	1.04	0.58	0.98	3.79	0.73	0.99	5.24
	49.9: 30.1: 1.1 (v/v/v)	0.29	1.04	1.01	0.57	0.97	3.82	0.71	1.01	5.26
Detection wavelength (nm)	269	0.29	1.01	1.03	0.59	0.95	3.77	0.74	1.03	5.21
	271	0.28	1.02	1.00	0.57	0.94	3.79	0.72	0.98	5.25
Scanning speed (mm/s)	18	0.28	1.05	1.05	0.59	0.99	3.68	0.73	1.01	5.29
	22	0.29	1.02	1.02	0.58	0.96	3.78	0.75	0.99	5.26
	Mean	0.29	1.03	1.03	0.58	0.97	3.77	0.73	1.00	5.25
	SD	0.01	0.02	0.02	0.01	0.02	0.05	0.01	0.02	0.03
	% RSD	1.92	1.90	1.83	1.54	1.94	1.27	1.94	1.83	0.50

^ARetardation factor.

^BTailing factor.

^CCapacity factor.