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  • Title: Chemiluminescence immunoassay for chloramphenicol.
    Author: Lin S, Han SQ, Liu YB, Xu WG, Guan GY.
    Journal: Anal Bioanal Chem; 2005 Jul; 382(5):1250-5. PubMed ID: 15977032.
    Abstract:
    In recent years, various chemiluminescent clinical immunoassay kits have been widely applied to the detection of hormones. However, a kit for chloramphenicol (CAP) is often absent from most commercial product lists, even though it is important to control the levels of CAP residues in foodstuffs too. Therefore, we describe a simple, solid-phase chemiluminescence immunoassay (CLIA) for the measurement of CAP in foodstuffs. A rabbit anti-CAP IgG is passively adsorbed onto the walls of polypropylene plates. The labeled antigen is horseradish peroxidase (HRP) conjugate of CAP. Luminol solution is used as the substrate of HRP. The light yield is inversely proportional to the concentration of CAP. The method has a similar sensitivity (0.05 ng/ml), specificity, precision, and accuracy to a conventional enzyme immunoassay (EIA). The intra-assay and inter-assay CVs of ten samples were <8% and <20%, respectively, and the analytical recovery of the method was 87-100%. The experimental correlation coefficient of dilution was found to be 0.999 using milk supernatant as buffer. The detection limit for the method was 0.1-10 ng/ml, and it displayed good linearity.
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