Analysis tools and a method of manufacturing the same

The present invention relates to a flow channel 20 and the sample comprises a tank 20F for holding, and analysis tool 1 formed by joining a first member 2 and the second member 3 by using a solvent for moving the sample. Analysis tool 1 further comprises a first member 2 and the solvent passage 21 formed in at least one of the second member 3. The first member 2 and the second member 3 are fused in a solvent channel 21 or around. Preferably, the solvent channel 21 is formed along at least a portion of the flow channel 20 or the vessel 20F.