Establishment of Colloidal Gold Immunochromatography Strip for Detection of Florfenicol Residues

ISSN: 1875-676X (Online)
ISSN: 1573-4129 (Print)

Volume 13, 6 Issues, 2017

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Current Pharmaceutical Analysis

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Anastasios Economou
Department of Chemistry
Laboratory of Analytical Chemistry
University of Athens

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Establishment of Colloidal Gold Immunochromatography Strip for Detection of Florfenicol Residues

Current Pharmaceutical Analysis, 10(4): 263-270.

Author(s): Airong Zhu, Rulin Huo, Wei Zhou, Lin Zhang, Feng Gao and Guanghong Zhou.

Affiliation: College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, P. R. China.


Florfenicol is a synthetic and broad-spectrum antibiotic and developed for veterinary use. In this study, onestep membrane-based competitive colloidal gold-based immunochromatographic formats for the rapid detection of florfenicol were developed. The quality of colloidal gold particles was monitored by UV-vis spectroscopy. For the conjugation of colloidal gold and antibody, 24 μg/mL of antibody was confirmed to the optimal amount for stabilization of colloidal gold. With the prepared colloidal gold immunochromatography test strip was determined the standard florfenicol solution. The results demonstrated a detection limit of florfenicol was approximately 1.0 μg/mL. The study showed that the strip had a high sensitivity to florfenicol and without cross-reaction for other antibiotics. The results of 80 animal samples tests confirmed that 0 sample was higher than the detection limits by liquid chromatography-mass spectrometry (LC-MS). There was evidence to suggest that colloidal gold particles and GAB gold-labeled antibody were synthesized successfully. The prepared colloidal gold immunochromatography strip could be used for preliminary screening of florfenicol.


Colloidal gold, florfenicol, immunochromatography, LC-MS.

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Article Details

Volume: 10
Issue Number: 4
First Page: 263
Last Page: 270
Page Count: 8
DOI: 10.2174/1573412910666140702162232
Price: $58
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