Table 3.
Percentage of degradation of IMM under different stress conditions.
| Impurities | Stress conditions (%) | |||||
|---|---|---|---|---|---|---|
| Undegraded sample | Acid (1 M at 60°C) | Basic (1 M at 60°C) | Hydrogen peroxide (30% at 60°C) | Thermal (60°C) | Photodegradation (4500 Lx ± 500 Lx) | |
| I | 0.01 | 0.31 | 7.14 | 0.05 | 0.01 | 0.09 |
| II | 0.01 | 0.04 | N.D. | N.D. | 0.01 | 0.01 |
| III | 0.07 | 0.02 | 0.07 | 0.08 | 0.08 | 0.08 |
| IV | N.D. | N.D. | N.D. | N.D. | N.D. | N.D. |
| V | N.D. | N.D. | N.D. | 10.42 | N.D. | N.D. |
| Unknown | 0.01 | 0.08 | 0.01 | N.D. | 0.06 | 0.20 |
| IMM | 99.89 | 99.54 | 92.78 | 89.45 | 99.85 | 99.62 |
N.D.: not detected.