COMPOSITION CONTAINING PARTICLE SURFACE CHARGE CONTROL AGENT, PARTICLE SEPARATING METHOD USING SAME, PARTICLE SEPARATOR

摘要

A composition for separating or quantitatively determining target particles in a sample by changing the amount of charge on the surface of the particles and utilizing the changed charge. The composition including a charge control agent having a positive or negative charge in a solution and capable of specifically coupling to the target particles. A method for separating or quantitatively determining target particles in a sample is also disclosed. The method comprises a mixing step of mixing a sample containing target particles with a charge control agent capable of specifically coupling to the particles and having a positive or negative charge in the sample so as to couple the charge control agent to the particles and a step of separating or quantitatively determining the particles to which the charge control agent is coupled by applying a voltage or current to the sample obtained by the mixing and utilizing the surface charge of the particles changed by the coupling of the charge control agent.