Assay of Irbesartan as percent of labeled amount
Sample no  Intra-day precision Inter-day precision
1 99.78 100.32
2 101.52 101.32
3 100.36 99.88
4 101.24 100.22
5 99.87 99.98
Mean 100.54 100.34
%RSD 0.79 0.57
Table 4: Precision of the Irbesartan working standards.