Biomolecular analysis method and biomolecular analyzer

A biomolecular analyzer comprising:

• a flow cell;
• a working electrode, a counter electrode, and a reference electrode which are arranged in the interior of the flow cell;
• a solution comprising a magnetic support over the surface of which a complex including an antibody that is labeled with a luminescent agent and recognizes a test object is formed, and a reaction aid to assist reaction of the luminescent agent;
• and
• a controller configured to:
• cause the solution to flow in the flow cell with the test object;
• capture the magnetic support over the working electrode by causing a magnetic field to be generated by a magnetic force generator;
• cause the luminescent agent to illuminate by applying a voltage to the working electrode;
• and
• measure an amount of luminescence of the luminescent agent with a measuring device,
• wherein the solution contains a first neutral radical that is produced from the reaction aid through a cation radical and acts on luminescence of the luminescent agent, and a second neutral radical that is produced not through a cation radical and acts on luminescence of the luminescent agent, and
• wherein the solution contains at least two kinds of aliphatic amines comprising
• a first aliphatic amine and a second aliphatic amine, and
• wherein the first neutral radical is produced by the first aliphatic amine that is contained in the solution and has only a linear alkyl chain, and the second neutral radical is produced by the second aliphatic amine that causes a nitrogen-carbon bond to dissociate in succession to oxidation reaction over the working electrode.