Patent ID: 6998055
Filing Date: 2006-02-14
Classification: B03C,G01N,Y10T

Abstract:
1. A concentration method using magnetic particles comprising: capturing a target substance in a first suspension having a first volume directly or indirectly with magnetic particles; separating the magnetic particles from the first suspension by sucking the first suspension from a first container storing the first suspension, passing the first suspension through a first liquid passage, and exerting a magnetic field from outside the first liquid passage to the inside of the first liquid passage to thereby attract the magnetic particles to an inner wall of the first liquid passage; suspending the magnetic particles in a liquid having a second volume to obtain a second suspension, wherein the second volume is less than the first volume, by sucking the liquid from a second container storing the liquid, passing the liquid through the first liquid passage without exerting a magnetic field on the first liquid passage and discharging the second suspension into the second container; and eluting the target substance from the magnetic particles in the second suspension.