Patent ID: 6712288
Filing Date: 2004-03-30
Classification: H01L

Abstract:
A separating apparatus for separating a sample by a fluid, comprising:a holding portion for holding a sample having a separation layer inside; a nozzle for injecting a fluid to the separation layer of the sample held by said holding portion; a fluid supply portion for supplying the fluid to said nozzle; and an operation mechanism for changing a position where the fluid is injected from said nozzle to the sample along with progress of the separation processing, wherein said fluid supply portion suppresses a variation in pressure of the fluid to be supplied to said nozzle within a predetermined range during separation processing so that the fluid is ejected from said nozzle at substantially constant pressure, and wherein said operation mechanism changes the position where the fluid is injected to the separation layer of the sample gradually or stepwise from a peripheral portion to a central portion of the separation layer along with progress of the separation processing.