Quantitative Analysis of Favipiravir by HPLC: Development and Validation

Table 11

Filter absorbance results.

#	Nylon 0.45 μm			Nylon 0.22 μm		Centrifuge
	Standard area	Sample area	% assay	Standard area	Sample area	Standard area	Sample area
1	36.877	36.755	99.5	36.679	99.3432	37.457	101.4504
2	36.967	37.119	100.5	36.696	99.38924	37.422	101.3556
3	36.958	37.125	100.6	36.731	99.48404	37.413	101.3312
4	36.884	37.109	100.5	36.744	99.51925	37.499	101.5641
5	36.922	37.027	100.3	36.7125	99.43393	37.44775	101.4253
SD	0.05	0.18	0.49	0.03	0.08	0.04	0.11
RSD (%)	0.13	0.5	0.49	0.08	0.08	0.10	0.104