Table 4

Parameter	Method condition	% rsd of peak area
Parameter	Method condition	PRG	MC
Chamber saturation Time (±20)	16 min	1.41	1.97
Chamber saturation Time (±20)	24 min	1.10	1.44
Development distance from spot application (±10)	7.7 cm	1.04	2.02
	6.3 cm	0.83	1.80

Table 4: Results from the robustness study of method.