Inj.# Febuxostat Impurity A Impurity B Impurity C Impurity D
 LOQ(µg/ml) 0.404 0.426 0.420 0.424 0.428
LOD(µg/ml) 0.13 0.142 0.140 0.141 0.142
LOQ-Limit of Quantitation; LOD-Limit of Detection
Table 3: Limit of quantitaion and detection.