Table 3 Stabilities of colistin A, colistin B, and netilmicin
Sample | Concentration (μg/mL) | Frozena (%) | Refrigerateda (%) | Room temperaturea (%) | Freeze-thawb (%) |
|---|---|---|---|---|---|
Colistin A | 8.00 | 102 ± 2 | 100 ± 3 | 99 ± 2 | 100 ± 2 |
0.10 | 105 ± 3 | 100 ± 1 | 102 ± 3 | 97 ± 3 | |
Colistin B | 8.00 | 100 ± 3 | 98 ± 3 | 101 ± 2 | 99 ± 3 |
0.10 | 105 ± 2 | 102 ± 2 | 102 ± 2 | 102 ± 3 | |
Netilmicin | 8.00 | 103 ± 3 | 101 ± 2 | 103 ± 2 | 102 ± 2 |
0.10 | 102 ± 3 | 104 ± 2 | 102 ± 3 | 98 ± 3 |