1. A novel fluorescence immunoassay for the quantitative detection of florfenicol in animal-derived foods based on ZnCdSe/ZnS quantum dot labelled antibody.
- Author
-
Xin C, Zhou J, Chen Y, Liu Y, Liu H, Liang C, Zhu X, Zhang Y, Chen Z, Tang X, Zhang B, Lu M, Wei J, Xue H, Qi Y, Zhang G, and Wang A
- Subjects
- Animals, Immunoassay methods, Sulfides analysis, Sulfides chemistry, Zinc Compounds chemistry, Drug Residues analysis, Antibodies chemistry, Animal Feed analysis, Limit of Detection, Cadmium Compounds chemistry, Fluorescence, Chickens, Quantum Dots chemistry, Thiamphenicol analysis, Thiamphenicol analogs & derivatives, Food Contamination analysis, Anti-Bacterial Agents analysis
- Abstract
Florfenicol (F), an antimicrobial agent exclusive to veterinary use within the chloramphenicol class, is extensively applied as a broad-spectrum remedy for animal diseases. Despite its efficacy, concerns arise over potential deleterious residues in animal-derived edibles, posing threats to human health. This study pioneers an innovative approach, introducing a quantum dot fluorescence-based immunoassay (FLISA) for the meticulous detection of F residues in animal-derived foods and feeds. This method demonstrates heightened sensitivity, with a detection limit of 0.3 ng/mL and a quantitative detection range of 0.6-30.4 ng/mL. Method validation, applied to diverse food sources, yields recoveries from 90.4 % to 109.7 %, featuring RSDs within 1.3 % to 8.7 %, the results showed high consistency with the national standard HPLC-MS/MS detection method. These findings underscore the method's accuracy and precision, positioning it as a promising tool for swift and reliable F residue detection, with substantial implications for fortifying food safety monitoring., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
- Published
- 2024
- Full Text
- View/download PDF