【Detection principle】 This product uses fluorescence immunochromatography to quantitatively detect the FPV IgG / IgM antibody content in cat blood. Basic principle: T and C lines are marked on the nitrocellulose membrane. The binding pad is sprayed with a fluorescent nanomaterial marker that can specifically recognize the FPV IgG / IgM antibody. The FPV IgG / IgM antibody in the sample is first combined with the nanomaterial marker to form a complex, and then it is chromatographed upward. The complex and T-line In combination, when the excitation light is irradiated, the nanomaterial emits a fluorescent signal, and the strength of the signal is positively correlated with the FPV IgG / IgM antibody concentration in the sample.