Method for measuring surface plasmon resonance

摘要

An object of the present invention is to suppress the noise width of a reference cell during measurement and the base line fluctuation. The present invention provides a method for measuring a change in surface plasmon resonance, which comprises: using a surface plasmon resonance measurement device (10) comprising a flow channel system having a cell formed on a metal film (12) and a light-detecting means (40) for detecting the state of surface plasmon resonance by measuring the intensity of a light beam totally reflected on the metal film (12); and exchanging the liquid contained in the above flow channel system, wherein the above method is characterized in that a change in surface plasmon resonance is measured in a state where the flow of the liquid has been stopped, after the liquid contained in the above flow channel system has been exchanged.