A Visual Gel-Enzyme-Linked Immunosorbent Assay for Simultaneous Detection of Gentamicin and Kanamycin in Milk
文献类型: 外文期刊
作者: Xu Fei;Liu Mao-Lin;Liu Yi-Ming;Li Xiu-Bo;Li Jing-Ya;Zhou Jie;Ding Shuang-Yang;Wang Jian-Fen
作者机构:
关键词: Gel-enzyme-linked immunosorbent assay;Gentamicin;Kanamycin;Simultaneous detection;Milk
期刊名称: CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
ISSN: 0253-3820
年卷期: 2015 年 43 卷 6 期
页码:
收录情况: SCI
摘要: A visual gel-enzyme-linked immunosorbent assay (Gel-ELISA) assay for simultaneous detection of gentamicin (GEN) and kanamycin (KANA) in milk was described. In the gel detection column, two detection layers were filled with CN-Br activated Sephrose 4B gel as solid phase carrier, which was coupled with goat anti-mouse IgG. The anti-GEN and anti-KANA monoclonal antibodies were added to combine with the carrier respectively in each layer. Gentamicin and kanamycin drugs in sample competed with corresponding enzyme-labeled antigens for the immobilized antibody on the column, and the drugs could be detected by the chromogenic reaction of substrate 3,3' ,5, 5' -tetramethylbenzidine. This approach was a yes/no method after color detection by naked eyes with the detection time of 15 min. The sensitivity of the Gel-ELISA method was 2 mu g/L, and the detection limit (Cut-off value) for gentamicin and kanamycin in raw milk was 5 mu g/L. The detection results of the ten blind milk samples by the proposed Gel-ELISA method were consistent with those obtained by ultra performance liquid chromatography. tandem mass spectrometry (UPLC/MS-MS).
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