Inj.# Febuxostat Impurity A Impurity B Impurity C Impurity D Criteria
1 2811 3659 3386 3195 3367 NMT 5%
2 2933 3503 3431 3089 3443
3 2957 3538 3311 3142 3591
4 3075 3601 3211 3091 3467
5 2865 3340 3449 3131 3380
6 2964 3463 3281 3171 3348
Mean 2934 3517 3345 3136 3433
SD 90.93 111.56 92.71 42.51 90.33
%RSD 3.1 3.2 2.8 1.4 2.6
Table 2: System precision results.