Abstract: A surface plasmon resonance fluorescence analysis device emits a light beam to a prism in which a metal film is formed on a prescribed surface while changing an angle of incidence relative to the metal film in a state in which the light beam is totally reflected, measures light generated on a surface of the metal film, determines an angle at which the light beam enters the metal film based on a change in intensity of the measured light, adjusts the emitting direction of the light beam so that the light beam enters the metal film at the determined angle of incidence, and measures fluorescence generated on the surface of the metal film in a state in which the light beam is emitted the adjusted direction.

Abstract: There are provided a micro mixer capable of efficiently mixing at least two types of liquids in a simple structure and a microfluidic chip provided with the micro mixer. In order to achieve the object, the micro mixer includes a minute passage through which first and second liquids are caused to flow respectively, and a mixing vessel in which a liquid injecting port caused to communicate with the minute passage is provided in a bottom part, and the liquid injecting port is provided in a shifted position from a center of the bottom part in the bottom part. Moreover, the liquid injecting port may be provided in a shifted position from a center line of the mixing vessel.

Abstract: A surface plasmon resonance fluorescence analysis device emits a light beam to a prism in which a metal film is formed on a prescribed surface while changing an angle of incidence relative to the metal film in a state in which the light beam is totally reflected, measures light generated on a surface of the metal film, determines an angle at which the light beam enters the metal film based on a change in intensity of the measured light, adjusts the emitting direction of the light beam so that the light beam enters the metal film at the determined angle of incidence, and measures fluorescence generated on the surface of the metal film in a state in which the light beam is emitted the adjusted direction.

Abstract: There are provided a micro mixer capable of efficiently mixing at least two types of liquids in a simple structure and a microfluidic chip provided with the micro mixer. In order to achieve the object, the micro mixer includes a minute passage through which first and second liquids are caused to flow respectively, and a mixing vessel in which a liquid injecting port caused to communicate with the minute passage is provided in a bottom part, and the liquid injecting port is provided in a shifted position from a center of the bottom part in the bottom part. Moreover, the liquid injecting port may be provided in a shifted position from a center line of the mixing vessel.