To establish a method for the rapid detection of the nicarbazine residue marker 4, 4’-dinitrogendibenzuron in chicken by colloidal gold immunochromatography.
Key parameters including extraction solvent, volume and incubation time were systematically optimized to determine the optimal detection conditions: 10.0 mL of methanol as the extraction solvent, an extraction time of 2 min and an incubation time of 3 min.
Experimental validation demonstrated that the method exhibited cross-reactivity rates of less than 0.1% with 15 kinds of common anticoccidial drugs (e.g., diclazuril, salinomycin) and 5 kinds of structural analogs, indicating excellent specificity. When applied to real sample analysis, the results showed good agreement with those obtained by the reference method, with a false negative rate, false positive rate and relative accuracy of 0%, 0% and 100%, respectively.
The developed method is simple, rapid, sensitive and specific, making it suitable for on-site rapid screening of nicarbazin residues in chicken.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |