Login| Sign Up| Help| Contact|

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 (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
INABA Tooru (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
MATSUOKA Shinya (24-14 Nishi Shimbashi 1-chome, Minato-k, Tokyo 17, 〒1058717, JP)
EBIHARA Daisuke (24-14 Nishi Shimbashi 1-chome, Minato-k, Tokyo 17, 〒1058717, JP)
YOKOKAWA Takeshi (24-14 Nishi Shimbashi 1-chome, Minato-k, Tokyo 17, 〒1058717, JP)
Application Number:
JP2018/037621
Publication Date:
June 13, 2019
Filing Date:
October 09, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HITACHI HIGH-TECHNOLOGIES CORPORATION (24-14, Nishi Shimbashi 1-chome Minato-k, Tokyo 17, 〒1058717, JP)
International Classes:
G01N35/02; B03C1/00; B03C1/28; G01N1/28
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (Atago Green Hills MORI Tower 32F, 5-1 Atago 2-chome, Minato-k, Tokyo 32, 〒1056232, JP)
Download PDF: