The invention relates to a
Galectin-3 detection nanometer
magnetic bead sorting-time resolved
immunofluorescence kit, which comprises superparamagnetic composite micro-particles with a particle size of 30 nm, a
coupling liquid, a blocking solution, a washing liquid, a loading buffer, a
fluorescence enhancement solution, a detection buffer, a
capture antibody, a detection
antibody, Eu<3+> labeled
streptavidin and a standard substance. The use of the kit comprises: adopting nanometer
magnetic bead sorting and time resolved
immunofluorescence adopting a
double antibody sandwich method as the base to detect the concentration of
Galectin-3
protein in a sample, adopting nanometer magnetic beads coupled with the
Galectin-3
capture antibody to enrich the Galectin-3 in the sample, adding the detection
antibody, incubating, washing, adding the Eu<3+> labeled
streptavidin, incubating, washing again, adding the
fluorescence enhancement solution, vibrating for 5 min, adopting light with a
wavelength of 337 nm to excite, delaying for 200 microseconds, detecting the emitted
fluorescence value at a
wavelength of 615 nm, and obtaining the concentration of the Galectin-3 in the sample to be detected through the fluorescence value and the corresponding
standard curve, wherein the sample to be detected can further be used for detecting the next
target protein.