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Patent Searching and Data


Title:
MAGNETIC SEPARATION METHOD AND AUTOMATED ANALYZER
Document Type and Number:
WIPO Patent Application WO/2019/111524
Kind Code:
A1
Abstract:
The purpose of the present invention is to use a single device to highly efficiently carry out a plurality of washing processes for gradually reducing the amount of a magnetic particle solution in a reaction vessel. This magnetic separation method comprises a plurality of washing processes for using a magnetic separation device and a stirring mechanism to separate a magnetic substance and nonmagnetic substance. A first washing process includes a step for inserting a reaction vessel 116 into a recess provided in the magnetic separation device and capturing the magnetic substance using a plurality of magnets 51, 52 that are each disposed along the peripheral direction of the recess such that the same pole faces the reaction vessel 116, a step for solution aspiration, a step for discharging liquid such that the surface 61 of the liquid goes to a position higher than the upper edges of the magnets, and a step for stirring the liquid. A second washing process includes a step for inserting the reaction vessel 116 into the magnetic separation device and aspirating the liquid, a step for discharging the liquid such that the surface 62 of the liquid goes to a position lower than the upper edges of the magnets where the magnetic field intensity is lower than at the position of the upper edges of the magnets, and a step for stirring the liquid. (See fig. 6.)

Inventors:
HSU RUOCHI (JP)
INABA TOORU (JP)
MATSUOKA SHINYA (JP)
EBIHARA DAISUKE (JP)
YOKOKAWA TAKESHI (JP)
Application Number:
JP2018/037621
Publication Date:
June 13, 2019
Filing Date:
October 09, 2018
Export Citation:
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Assignee:
HITACHI HIGH TECH CORP (Postcode1058717, JP)
International Classes:
G01N35/02; B03C1/00; B03C1/28; G01N1/28
Foreign References:
JP2003093039A2003-04-02
JP2013223820A2013-10-31
JP2012127756A2012-07-05
JPH02161358A1990-06-21
JP2014122826A2014-07-03
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (Postcode1056232, JP)
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