Table 4 Freeze–thaw stability
Analyte | Spiked concentration(ng/mL) | Accuracy (%) | Precision (%) |
|---|---|---|---|
AFB1 | 0.05 | 97 | 5 |
0.5 | 102 | 1 | |
2 | 118 | 3 | |
16 | 111 | 3 | |
AFB2 | 0.05 | 100 | 7 |
0.5 | 98 | 1 | |
2 | 114 | 1 | |
16 | 106 | 0.3 | |
AFG1 | 0.05 | 107 | 3 |
0.5 | 92 | 1 | |
2 | 114 | 1 | |
16 | 105 | 2 | |
AFG2 | 0.2 | 98 | 5 |
0.5 | 97 | 3 | |
2 | 109 | 5 | |
16 | 105 | 3 | |
AFM1 | 0.05 | 108 | 4 |
0.5 | 99 | 0.4 | |
2 | 119 | 2 | |
16 | 115 | 1 | |
AFM2 | 0.2 | 103 | 1 |
0.5 | 100 | 1 | |
2 | 117 | 1 | |
16 | 113 | 4 |