Development of an immunochromatographic lateral flow test strip for detection of beta-adrenergic agonist Clenbuterol residues
文献类型: 外文期刊
作者: Zhang, GP 1 ; Wang, XN 2 ; Yang, JF 2 ; Yang, YY 2 ; Xing, GX 2 ; Li, QM 2 ; Zhao, D 3 ; Chai, SJ; Guo, JQ;
作者机构: 1.Henan Inst Sci & Technol, Coll Vet & Anim Sci, Xinxiang 453003, Peoples R China
2.Henan Inst Sci & Technol, Coll Vet & Anim Sci, Xinxiang 453003, Peoples R China; Henan Acad Agr Sci, Henan Prov Key Lab Anim Immunol, Zhengzhou 450002, Peoples R China
3.Henan Inst Sci & Technol, Coll Vet & Anim Sci, Xinxiang 453003, Peoples R China; Henan Acad Agr Sc
关键词: Clenbuterol;test strip;colloidal gold;immunochromatography;rapid test
期刊名称:JOURNAL OF IMMUNOLOGICAL METHODS ( 影响因子:2.303; 五年影响因子:2.556 )
ISSN: 0022-1759
年卷期: 2006 年 312 卷 1-2 期
页码:
收录情况: SCI
摘要: A rapid immunochromatographic lateral flow test strip was developed in a competitive format with the gold-conjugated monoclonal antibody to specifically determine the residues of Clenbuterol (CL), a beta-adrenergic agonist. The test strip is made up of a sample pad, a conjugate reagent pad, a test membrane containing a control line and a test line, and an absorbent pad. CL standard samples of 0, 0.1, 0.3, 0.9, 2.7, 8.1 ng/ml in swine urine were determined by the test strip. It was shown that detection limit of the test strip was as low as 0.1 ng/ml of CL and that the half of maximal inhibition concentration (IC50) in relative optical density was calculated to be 1.78 +/- 0.17 ng/ml under an optical density scanner. The sensitivity by eye measurement was 1.0 ng/ml. It takes 10 min to accomplish a test. Parallel analysis of urine samples from pigs fed with CL showed comparable results obtained from the test strip and GC-MS. Therefore, the test strip is very useful as a screening method for quantitative, semi-quantitative or qualitative detection of CL residues in swine urine. (c) 2006 Elsevier B.V. All rights reserved.
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