Table 2.
Comparison of different methods for ENRO determination in various samples
| Methods | Sensitivity | LOD | Required Time | Reuse Cycles | Samples | References |
|---|---|---|---|---|---|---|
| Direct ELISA | 20.0 ng·g−1 | 1.3 ng·g−1 | >4.5 h | Once | feed | [15] |
| Quantum dot-based fluoroimmunoassay | 1–100 ng·mL−1 | 2.5 ng·mL−1 | >30 min | Once | Chicken muscle | [23] |
| Surface-enhanced Raman spectroscopy | - | 10 ng·mL−1 | 40 min | Once | Chicken muscle | [41] |
| Microarray analyses | - | 5 ng·kg−1 | >1 h | - | Beef, pork and chicken | [42] |
| Immunoassay strip | 0.038–22.75 ng·mL−1 | 0.935 ng·mL−1
(by scanner and eye) |
5 min | Once | Chicken muscle | [43] |
| Impedimetric immunosensors | 1–1000 ng·mL−1 | 1.0 ng·mL−1 | - | - | Blood | [44] |
| Electrochemiscal immunobiosensor | 0.01–10 ng·mL−1 | 10 pg·mL−1 | 10–15 min | - | Milk, stream water | [45] |
| Portable SPR sensor | 26.4 ± 7.2 μg·L−1 | 2.0 ± 0.2 μg·L−1 | <30 min | Once | Milk | [46] |
| SPR immunosensor | 3.8 ng·mL−1 | 1.2 ng·mL−1 | About 6 min | At least 100 times | Pure milk, egg, chicken muscle, beef and fish | This research |