MICROCHIP, SOLVENT DISPLACEMENT METHOD USING THE MICROCHIP, CONCENTRATING METHOD, AND MASS SPECTROMETRY SYSTEM

摘要

A mass spectrometry system capable of recovering specific components from a specimen in high densities and performing a solvent displacement. A separati on device (100) is installed on a microchip and incorporates a flow passage (11 2) for flowing the specific components therein. The flow passage (112) is forme d of a specimen inlet flow passage (300), a filtrate discharge flow passage (302) branched from the specimen inlet flow passage (300), and a specimen recovering part (308) branched from the specimen inlet flow passage. A filte r (304) stopping the passage of the specific components is installed at the inlet of the filtrate discharge flow passage (302) from the specimen inlet flow passage (300). A damming area (hydrophobic area) (306) stopping the ent ry of liquid specimen and allowing the liquid specimen to be passed by an external force of a specified value or more provided thereto is installed at the inlet of the specimen recovering part (308) from the specimen inlet flow passage (300).