Table 2 Recovery and matrix effect of colistin E2 and IS.
Item | Colistin E2 concentration (mg/L) | IS concentration (mg/L) | |||
|---|---|---|---|---|---|
0.0900 | 0.240 | 12.0 | 24.0 | 15 | |
Recovery (%) | 44.2 ± 2.1 | 42.1 ± 1.3 | 43.0 ± 1.8 | 41.1 ± 1.3 | 44.8 ± 1.4 |
Matrix effect (%CV of the IS-normalized MF) | 1.1 | 2.6 | 1.1 | 0.7 | – |
