Stability-Indicating HPLC Assay for Determination of Idebenone in Pharmaceutical Forms

Table 4

Robustness.

Parameters	Modification	RT (min)	% recovery
Flow rate (mL/min)	1.1	1.558	99.9
	1.2	1.425	91.2
	1.3	1.317	85.2
Wavelength of detection (nm)	481	1.71	101.7
	482	1.70	101.3
	483	1.70	98.2
Column temperature (°C)	23	1.72	100.7
	27	1.70	100.3
	30	1.69	100.6
Deionised water in mobile phase	1%	1.71	100.9
	2%	1.75	101.9