METHOD FOR ANALYZING BIOMOLECULES

An object of the present invention is to provide a method and means for analyzing biomolecules that can realize, in biomolecule analysis, a wide dynamic range attained by counting the number of biomolecules and rapid analysis. The present invention relates to a method for analyzing biomolecules, comprising the steps of: immobilizing biomolecules 101 to be analyzed on surfaces of magnetic microparticles 108; reacting labeled probe molecules 104 with the biomolecules 101 to be analyzed; collecting and immobilizing the microparticles 108 on a support substrate 110; and measuring a label on the support substrate 110. Since single-molecule immobilized magnetic microparticles are used in the present invention, the number of biomolecules can be counted, and since hybridization and an antigen-antibody reaction are performed with the microparticles having biomolecules immobilized thereon dispersed, the reaction can be rapidly performed. Further, the type and the abundance of biomolecules of interest can be determined at a single molecular level, so as to evaluate, in particular, the absolute concentration of biomolecules.