Table 3. Robustness Result of EXE and GEN.

chromatographic parameter	Modification	theoretical plates	retention time	tailing factor
Robustness Data of EXE
wavelength (nm)	242	7494	2.10	1.47
	245	7540	2.12	1.48
	247	7646	2.11	1.45
flow rate (mL/min)	1.0	7574	2.10	1.42
	0.8	7454	2.14	1.45
	1.2	7604	2.18	1.48
composition of mobile phase	30:70	7543	2.11	1.41
	20:80	7555	2.13	1.42
	40:60	7621	2.15	1.45
Robustness Data of GEN
wavelength (nm)	268	6678	1.66	1.54
	270	6687	1.67	1.56
	271	6798	1.68	1.57
flow rate (mL/min)	1.0	6680	1.65	1.54
	0.8	6779	1.67	1.55
	1.2	6987	1.69	1.58
composition of mobile phase	30:70	6789	1.64	1.56
	20:80	6877	1.67	1.58
	40:60	6988	1.69	1.59