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    • 67. 发明公开
    • Device and method for separating, mixing and concentrating magnetic particles with a fluid and use thereof in purification methods
    • 装置和用于分离,混合和浓缩的磁性粒子与液体的方法,以及它们在清洁方法的使用
    • EP1621890A1
    • 2006-02-01
    • EP04077153.7
    • 2004-07-26
    • bioMerieux B.V.
    • Kreuwel, Hermannus Johannes MariaVerwimp, Emiel Gerebern MariaBeerling, Bernardus Jozef MariaSpee, Franciscus Gerardus
    • G01N35/00B01L3/00C12Q1/68
    • B01L3/5085B01L2200/025B01L2200/0647B01L2300/0858B03C1/01B03C1/0332B03C1/288B03C2201/18B03C2201/26G01N1/34G01N35/0098
    • The present invention is related to a process for manipulating magnetic particles that are suspended in a fluid, possibly containing a biological entity of interest, the magnetic particles being able to bind the entity of interest, the fluid being contained in a reaction vessel constituted by a large upper compartment with a funnel shape, an elongate lower compartment with a substantially constant cross-section and a closed base.
      The process consists of:

      a) subjecting the magnetic particles to two magnetic fields applied simultaneously to separate all said magnetic particles present in at least the upper compartment of the vessel from the fluid,
      b) transferring the separated magnetic particles from the upper compartment to the elongated lower compartment,
      c) removing the fluid from the vessel,
      d) adding a washing liquid to the lower compartment),
      e) subjecting the rest of the fluid to at least two magnetic fields applied successively with different and changing directions to wash all the magnetic particles present in the lower compartment, and
         
      concentrating said magnetic particles in said lower compartment.
      The according to the present invention are especially useful in methods for the extraction of nucleic acid to enable them for further processing.
    • 本发明涉及一种处理用于操纵磁性颗粒没有悬浮在流体,可能含有感兴趣的生物实体,能够对感兴趣的实体结合磁性颗粒,流体被包含在由构成的反应容器 有漏斗形状大上部隔室到细长下部隔室具有基本上恒定的横截面和一个封闭的底部。 该方法的besteht:a)使磁性粒子以同时应用的两个磁场来分离所有的所述磁性粒子的至少从流体,B)传递环存在于容器的上隔室从上部隔室的分离的磁性粒子 细长的下部隔室,c)从容器中移除流体,d)将洗涤液到下隔室)中,e)使流体的剩余部分的至少两个磁场依次用不同和变化的方向施加到洗所有的 存在于所述下部隔室的磁性粒子,和€ƒ€ƒ€ƒ浓缩所述在所述磁性颗粒下部隔室。 所述gemäß到本发明是在用于核酸的提取,以使它们进行进一步的处理方法的爱特别有用。