Simultaneous Quantification of Dexpanthenol and Resorcinol from Hair Care Formulation Using Liquid Chromatography: Method Development and Validation

Table 5

Robustness study.

	Assay (mg/100 mL)	Analysts			Instruments			Storage condition
		1	2	3	I	II	III	20°C	30°C	45°C
RC	50.42	50.41	50.40	50.44	50.41	50.42	50.42	50.42	50.40	50.40
DP	49.77	49.77	49.78	49.76	49.79	49.78	49.77	49.77	49.76	49.77

Three replicates each.