Table 1 Recoveries, matrix effects, stability and intra-batch, inter-batch accuracy and precision of the columbianadin (n =6)
Compound | Concentration(ng mL −1) | Recovery | Matrix effect | Freeze-thaw cycles | At −20°C for 2 weeks | Autosampler for 24 h | Intra-batch | Inter-batch | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean | RSD | Mean | RSD | Remains | RSD | Remains | RSD | Remains | RSD | Accuracy | RSD | Accuracy | RSD | ||
(%) | (%) | (%) | (%) | (%) | (%) | (%) | (%) | (%) | (%) | (%) | (%) | (%) | (%) | ||
20 | 102 | 9.86 | 99.7 | 11.9 | 97.3 | 8.85 | 110 | 5.81 | 97.3 | 12.3 | 91.9 | 4.02 | 92.9 | 4.29 | |
1000 | 85.5 | 8.71 | 85.6 | 5.66 | 102 | 11.1 | 103 | 5.37 | 90.0 | 6.24 | 104 | 4.73 | 106 | 6.09 | |
10000 | 81.4 | 6.19 | 90.9 | 9.20 | 101 | 7.04 | 92.6 | 6.46 | 99.2 | 5.62 | 106 | 7.2 | 98.6 | 7.73 | |