辰东,旷世神医

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021-37651195

Fluorescent Immunoassay Quantitative POCT Detection System

Shanghai Xiongtu has utilized the advantages of fast detection speed, accurate results, low cost, and high efficiency of POCT to establish a joint research center for food safety detection technology in cooperation with Jiangnan University. It has independently built a POCT technology research and development platform, focusing on providing accurate, fast, and stable detection solutions for food safety and animal health fields. It has successfully developed a fluorescence immunoassay quantitative POCT detection system and completed the launch and sale of rapid quantitative detection products for fungal toxins and veterinary drug residues.

The principle of Shanghai Xiongtu fluorescence immunoassay quantitative POCT analysis method combines time-resolved fluorescence immunoassay (TRFIA) technology and POCT concept, which is a highly sensitive, specific, simple and fast ultra micro measurement method; The fluorescent label uses fluorescent microspheres made by special encapsulation and processing of lanthanide elements and their chelates. The fluorescence intensity is many times higher than that of ordinary fluorescent labels, greatly improving the sensitivity of detection. There is a significant shift between the excitation wavelength and emission wavelength of lanthanide elements and their chelates, which reduces the interference of non-specific stray light caused by excitation light on detection and improves the stability of fluorescence detection; At the same time, it has a long fluorescence lifetime and eliminates the interference of non-specific fluorescent substances in the environment on the analyte; And the fluorescence excitation wavelength is wide, the emission spectrum range is narrow, which reduces the background fluorescence intensity, improves the resolution, and enhances the sensitivity of the Xiongtu Biological Fluorescence Immunoquantification POCT detection system.

The Shanghai Xiongtu Fluorescence Immunoassay Quantitative POCT Detection System overcomes the short validity period and radiation hazards of Radioimmunoassay (RIA) to the environment and human body, the instability of traditional Colloidal Gold Immunoassay (ICA) and Enzyme Linked Immunoassay (ELISA), the susceptibility of Chemiluminescence Immunoassay (CLIA) to environmental interference, and the electrochemical luminescence immunoassay (ECLIC) Due to its high price, complex and time-consuming chromatographic/mass spectrometry operations, and high requirements for detection personnel, it has the advantages of simple sample pretreatment, convenient operation, short detection time, high sensitivity, strong specificity, long storage time, no radioactive contamination, good detection repeatability, wide standard curve range, no interference from natural fluorescence of samples, and wide application range. It has broad application prospects in fungal toxin detection, veterinary drug residue detection, pathogenic microorganism detection, virus antigen or antibody detection, hormone detection, drug detection and other fields.

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