Titrimetric and Spectrophotometric Assay of Ganciclovir in Pharmaceuticals Using Cerium(IV) Sulphate as the Oxidimetric Agent

Table 3

Evaluation of intraday and interday accuracy and precision.

Method*	GNC taken	Intraday accuracy and precision			Interday accuracy and precision
		GNC found	%RE	%RSD	GNC found	%RE	%RSD
Titrimetry	3.0	3.03	1.00	1.27	2.96	1.26	2.34
	6.0	6.04	0.67	0.81	1.08	1.08	1.47
	9.0	9.02	0.22	0.66	8.94	0.66	1.62
Spectrophotometry	2.0	2.04	2.00	3.10	2.05	2.5	3.26
	4.0	4.04	1.00	1.13	4.08	2.0	1.56
	6.0	5.83	2.83	0.50	5.90	1.67	2.13

RE: relative error; RSD: relative standard deviation.
*In titrimetry, GNCs taken/found are in mg and they are μg mL⁻¹ in spectrophotometry.