What is the quick detection card for quinoethanol colloidal gold in poultry eggs?

As an important source of protein in the daily diet of the public, the quality and safety of poultry eggs are directly related to the health of consumers. During the production of poultry eggs, some farmers may use or overuse veterinary drugs in violation of regulations in order to promote the growth of poultry or prevent diseases, among which quinolinol is a widely used antibacterial growth promoter. However, quinolinol has potential accumulative toxicity and mutagenicity. Excessive residue in poultry eggs will pose a threat to human health, so it is essential for the rapid and accurate detection of quinolinol in poultry eggs.

Quinolinol Colloidal Gold Rapid Detection Card in poultry eggs is a convenient detection tool developed in response to this need. Its core principle is based on colloidal gold immunochromatography technology: the nitrocellulose membrane of the detection card is coated with a quindol-carrier protein conjugate as the detection line, and a quindol monoclonal antibody binding pad labeled with colloidal gold. When the sample (such as poultry egg homogenate extract) is added dropwise to the detection card and the sample is added to the well, it migrates upward under capillary action. If the sample contains quindol, it will bind to the colloidal gold-labeled antibody and prevent the antibody from binding to the conjugate on the detection line. At this time, the detection line does not show color; if the sample does not contain quindol, the antibody will bind to the conjugate on the detection line, and the detection line will develop color, so as to realize the qualitative or semi-quantitative detection of quindo

The outstanding advantage of this test card is "fast" and "convenient". Under normal circumstances, it only takes 10-15 minutes to complete a test, without the need for complex equipment and professional operators. Ordinary users or grass-roots supervisors can complete the operation on site. Its detection cost is relatively low, suitable for large-scale screening and use. It can be widely used in poultry egg production bases, wholesale markets, farmers' markets and other scenarios. Timely detection of poultry egg products that may have excessive quinolyethanol residues ensures food safety from the source.

In addition, the test card also has high specificity and sensitivity, which can effectively distinguish whether the content of quinolyethanol in the sample exceeds the safety standard. The accuracy and reliability of the test results have been recognized by comparison with routine laboratory detection methods (such as high-performance liquid chromatography). Therefore, the quinolinol colloidal gold rapid detection card in poultry eggs is not only a practical tool for quality control of poultry egg manufacturers, but also an important auxiliary means for market supervision departments to carry out food safety supervision, providing strong support for protecting consumers' "safety on the tip of the tongue".