INTRA DAY INTER DAY S.No Amount of drug taken (μg/ml) Amount of drug found (μg/ml) Mean %RSD Amount of drug taken (μg/ml) Amount of drug found (μg/ml) Mean %RSD 1 30 28 29.54 1.02 30 28 28.27 0.98 2 29 28 3 30 27 4 29.6 27.9 5 29.6 28.7 6 28.9 28.9

Table 4: Analytical Intraday and Interday precision of vancomycin.