Formulations Taken Conc. from tablet (µg mL-1) Method A Method B Method C
Pure drug added (µg mL-1) Total found (µg mL-1) Recovery%a ± SD Pure drug added (µg mL-1) Total found (µg mL-1) Recovery% ± SD Pure drug added (µg mL-1) Total found (µg mL-1) Recovery%  ± SD
Factive tablets 0.5 0.5 0.996 99.60 ± 0.98 0.5 0.998 99.80 ± 0.76 1.0 1.503 100.20 ± 0.81
  1.0 1.496 99.70 ± 1.16 1.0 1.523 100.15 ± 1.22 2.0 2.505 100.20 ± 1.10
  1.5 1.998 99.90 ± 1.02 1.5 1.988 99.40 ± 1.19 4.0 4.482 99.60 ± 1.34
Flobiotic tablets 0.5 0.5 0.995 99.50 ± 0.76 0.5 1.001 100.10 ± 0.92 1.0 1.497 99.80 ± 0.68
  1.0 1.497 99.80 ± 0.89 1.0 1.496 99.70 ± 0.09 2.0 2.488 99.50 ± 1.04
  1.5 1.984 99.20 ± 1.25 1.5 1.984 100.10 ± 1.13 4.0 4.464 99.20 ± 1.27
GemiQue tablets 0.5 0.5 0.999 99.90 ± 0.67 0.5 0.993 99.30 ± 1.30 1.0 1.505 100.30 ± 0.86
  1.0 1.496 99.70 ± 0.96 1.0 1.495 99.65 ± 0.40 2.0 2.485 99.40 ± 0.93
  1.5 1.990 99.50 ± 0.74 1.5 1.996 99.80 ± 0.08 4.0 4.482 99.60 ± 1.06
Avelox®tablets 0.5 0.5 1.005 100.50 ± 0.98 1.0 1.503 100.2 ± 0.73 0.5 1.004 100.40 ± 0.67
  1.0 1.484 98.90 ± 1.12 2.0 2.490 99.60 ± 1.15 1.0 1.488 99.20 ± 1.19
  1.5 1.994 99.70 ± 0.65 3.0 3.471 99.17 ± 1.29 1.5 2.002 100.10 ± 1.23
Moxiflox tablets 0.5 0.5 0.987 98.70 ± 0.82 1.0 1.493 99.50 ± 0.87 0.5 0.993 99.30 ± 0.75
  1.0 1.493 99.50 ± 0.96 2.0 2.508 100.30 ± 1.35 1.0 1.498 99.85 ± 1.45
  1.5 1.992 99.60 ± 1.10 3.0 3.472 99.20 ± 1.58 1.5 1.989 99.45 ± 1.60
Moxifloxacin tablets 0.5 0.5 0.998 99.80 ± 0.78 1.0 1.503 100.20 ± 0.97 0.5 0.997 99.70 ± 0.71
  1.0 1.502 100.10 ± 1.10 2.0 2.486 99.45 ± 1.49 1.0 1.491 99.40 ± 1.29
  1.5 1.996 99.80 ± 1.30 3.0 3.490 99.70 ± 1.70 1.5 1.986 99.30 ± 1.70
aMean value of three determinations
Table 6: Results of recovery experiments by standard addition method.