Table 4 Standard addition technique for Gast-reg® 200 mg tablets, ampoules, and suspension by the proposed UV-spectrophotometric methods
Standard addition technique | DW | D2 | RD | CC-SS | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
Taken (μg/mL) | Added (μg/mL) | Found (μg/mL) | Recovery % of added | Found (μg/mL) | Recovery % of added | Found (μg/mL) | Recovery % of added | Found (μg/mL) | Recovery % of added | |
Standard addition of Gast-reg® 200 mg tablets (Batch No.: 162912) | 20.00 | 10.00 | 10.12 | 101.20 | 10.03 | 100.30 | 9.97 | 99.70 | 9.94 | 99.40 |
20.00 | 20.06 | 100.30 | 20.16 | 100.80 | 19.86 | 99.30 | 19.90 | 99.50 | ||
30.00 | 30.19 | 100.63 | 29.94 | 99.80 | 30.24 | 100.80 | 30.05 | 100.16 | ||
Mean | 100.71 | 100.30 | 99.93 | 99.69 | ||||||
± SD | 0.46 | 0.50 | 0.78 | 0.41 | ||||||
Standard addition of Gast-reg® ampoules (Batch No.: 154534) | 20.00 | 10.00 | 10.04 | 100.40 | 9.96 | 99.60 | 10.08 | 100.80 | 10.02 | 100.20 |
20.00 | 19.96 | 99.80 | 19.89 | 99.45 | 20.15 | 100.75 | 19.88 | 99.40 | ||
30.00 | 29.89 | 99.63 | 30.12 | 100.40 | 30.31 | 101.03 | 29.98 | 99.93 | ||
Mean | 99.94 | 99.82 | 100.86 | 99.84 | ||||||
± SD | 0.40 | 0.51 | 0.15 | 0.41 | ||||||
Standard addition of Gast-reg® suspension (Batch No.: 163650) | 24.00 | 10.00 | 10.08 | 100.80 | 10.09 | 100.90 | 9.96 | 99.60 | 9.96 | 99.60 |
20.00 | 19.82 | 99.10 | 20.17 | 100.85 | 19.79 | 98.95 | 19.85 | 99.25 | ||
30.00 | 30.01 | 100.03 | 30.36 | 101.20 | 30.25 | 100.83 | 29.67 | 98.90 | ||
Mean | 99.98 | 100.98 | 99.79 | 99.25 | ||||||
± SD | 0.85 | 0.19 | 0.95 | 0.35 | ||||||