Table 2 Recoveries for extraction and determination of IS in spiked plasma samples with spectrofluorimetry
Nominal concentration (µg.mL− 1, n = 3) | Found concentration (µg.mL− 1±SD, n = 3) | RSD% | Recovery% |
|---|---|---|---|
Intra-day | |||
35 | 30 ± 2.3 | 7.8 | 85 |
70 | 68 ± 10.2 | 15.0 | 96 |
110 | 96 ± 6.0 | 6.3 | 88 |
Inter-day | |||
35 | 32 ± 4.2 | 13.0 | 91 |
70 | 66 ± 6.9 | 10.5 | 93 |
110 | 93 ± 7.5 | 8.1 | 85 |