LABELING SUBSTANCE, IMMUNOLOGICAL MEASURING METHOD, REAGENT FOR IMMUNOLOGICAL MEASUREMENT, ANALYTE MEASURING METHOD, ANALYTE MEASURING KIT, AND LATERAL FLOW TYPE CHROMATOGRAPHIC TEST STRIP

摘要

PROBLEM TO BE SOLVED: To provide a labeling substance capable of carrying out high sensitive determination applicable to immunological measurement without requiring any special equipment or addition of a work step, which is superior in sensitivity, durability, and visibility.SOLUTION: The labeling substance has a resin-metal complex 100 having a structure in which a metal particles 20 are immobilized on resin particles 10. The resin-metal complex 100 includes resin particles 10 and metal particles 20, which has either composition of (A) average particle diameter of the resin-metal complex 100 is 300nm or more, or (B) average particle diameter of metal particles 20 is within a range of 20-70nm. The metal particles 20 include metal particles having a part embedded in the resin particles 10 and a part exposed outside of the resin particle 10.SELECTED DRAWING: Figure 1