Future Journal of Pharmaceutical Sciences

Table 8 Precision studies for standard and test solutions of phosphoryl impurity

From: Development and validation of RP HPLC method for the estimation of Sofosbuvir and related impurity in bulk and pharmaceutical dosage form

S. no	Retention time (min)		Peak area
S. no	Standard	Test	Standard	Test
1	6.099	6.092	32597	32112
2	6.103	6.090	32581	32219
3	6.104	6.091	32591	32238
4	6.181	6.089	32310	31488
5	6.092	6.091	31998	31327
6	6.091	6.088	32286	31941
Mean	6.112	6.090	32447	31888
% RSD	0.562	0.022	0.980	1.223
SD	0.034	0.001	318	390

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