% of initial concentration (mean ±SD, n=3) | |||||||
---|---|---|---|---|---|---|---|
Storage conditions | 3 days | 7 days | 14 days | 21 days | 28 days | 35 days | 42 days |
4°C (protected from light) | 100.02±0.16 | 99.92±0.09 | 99.40±0.14 | 99.36±0.15 | 99.00±0.17 | 98.72±0.12 | 98.26±0.11 |
Room temperature (protected from light) | 99.82±0.16 | 99.73±0.11 | 99.21±0.18 | 98.91±0.05 | 98.36±0.12 | 97.70±0.13 | 97.18±0.14 |
40°C (protected from light) | 99.75±0.16 | 99.23±0.16 | 98.74±0.07 | 97.81±0.16 | 96.90±0.16 | 96.13±0.10 | 94.92±0.07 |
Room temperature (exposed to light) | 99.32±0.16 | 99.10±0.06 | 98.42±0.13 | 98.08±0.11 | 97.74±0.11 | 97.00±0.06 | 96.28±0.16 |