Reagent [Drug] µg mL-1 Taken [Drug] µg mL-1 Found % Recovery SD RSD (%) Proposed method SAM* Proposed method SAM* Proposed method SAM* BTB 20.00 40.00   19.90 40.50   99.50 101.3   0.027 0.063 0.14 0.16 BPB 20.00 40.00   20.00 39.00   100.0 97.50   0.018 0.029 0.09 0.07 EBBR 20.00 40.00   20.00 39.50   100.00 98.75   0.036 0.055 0.18 0.14 SAM# 25.00 50.00 75.00 25.00 25.00 25.00   50.57 75.44 100.3   101.1 100.6 100.3 0.046 0.067 0.096 0.09 0.09 0.10 *Amount of standard added, μg mL–1 #Percentage recovery using standard addition method

Table 3: Determination of SILC in Virecta tablet using BTB, BPB and EBBR reagents.