Development of a Lateral Flow Colloidal Gold Immunoassay Strip for the Rapid Detection of Enrofloxacin Residues
文献类型: 外文期刊
作者: Zhao, Yinli 1 ; Zhang, Gaiping 1 ; Liu, Qingtang 1 ; Teng, Man 1 ; Yang, Jifei 1 ; Wang, Jianhua 3 ;
作者机构: 1.Henan Acad Agr Sci, Prov Key Lab Anim Immunol, Zhengzhou 450002, Peoples R China
2.Henan Univ Technol, Coll Bioengn, Zhengzhou 450001, Peoples R China
3.NW A&F Univ, Coll Vet Med, Yangling 712100, Shanxi, Peoples R China
关键词: Enrofloxacin;test strip;colloidal gold;immunoassay;rapid test
期刊名称:JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY ( 影响因子:5.279; 五年影响因子:5.269 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: A rapid immunochromatographic lateral flow test strip of competitive format has been developed using a gold-conjugated monoclonal antibody for the specific determination of enrofloxacin (ENR) residues in chicken muscles. For this purpose, a specific monoclonal antibody (mAb) for ENR was generated and characterized. The mAb showed negligible cross-reactivity with other related compounds. Using ENR standards prepared in chicken muscle extracts from 0 to 24.3 ng/mL (μg/ kg), the method indicated that the detection limit of the test strip, as measured in a strip scanner, was as low as 0.138 μg/kg of ENR and the half-maximal inhibition concentration (IC_(50)) was 0.935 μg/kg. For samples spiked at 10, 20, and 30 μg/kg, the recovery was between 85.3 and 96.1% and the coefficient of variation [CV (%)] was between 4.5 and 7.91%. Parallel analysis of muscle samples from chickens fed ENR showed good comparable results obtained from the test strip and LC-MS. Each test requires 5-10 min. The data indicate that the method has high sensitivity, specificity, and the advantages of simplicity and speed of performance. Therefore, the test strip provides a useful screening method for quantitative, semiquantitative, or qualitative detection of ENR residues in chicken muscles.
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