Table 2 Recoveries of spiked samples by colorimetric immunosensor and HPLC (n = 3)
Sample | Spiked level | visual image | Colorimetric Immunosensor | HPLC | ||||
|---|---|---|---|---|---|---|---|---|
µg kg−1 | Figure | Mean µg kg−1 | Recovery% | RSD % | Mean µg kg−1 | Recovery % | RSD % | |
Soy bean sprouts | 0 |
| ND | – | – | ND | – | – |
80 |
| 72 | 90 ± 5.9 | 6.5 | 93 | 116 ± 5.2 | 4.5 | |
280 |
| 264 | 94 ± 5.1 | 5.4 | 300 | 107 ± 6.4 | 6.0 | |
1060 |
| 1140 | 108 ± 10.6 | 9.8 | 993 | 94 ± 1.5 | 1.6 | |
Mung bean sprouts | 0 |
| ND | – | – | ND | – | – |
80 |
| 68 | 85 ± 4 | 4.7 | 82 | 103 ± 2.3 | 2.2 | |
280 |
| 247 | 88 ± 3.8 | 4.3 | 321 | 115 ± 5.8 | 5.0 | |
1060 |
| 991 | 94 ± 6.8 | 7.2 | 1103 | 104 ± 3.3 | 3.2 | |
