发明申请
- 专利标题: Magnetic immunoassay system
- 专利标题(中): 磁免疫测定系统
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申请号: US11715916申请日: 2007-03-09
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公开(公告)号: US20070254375A1公开(公告)日: 2007-11-01
- 发明人: Akira Tsukamoto , Kazuo Saitoh
- 申请人: Akira Tsukamoto , Kazuo Saitoh
- 优先权: JP2006-063776 20060309
- 主分类号: G01N27/00
- IPC分类号: G01N27/00
摘要:
A magnetic immunoassay system with a mechanism for compensating the direct current residual magnetic field in the vicinity of the specimen measurement position, in a direction perpendicular to the magnetic marker direction of magnetization for the measurement target. This invention reduces the effects of the magnetic field emitted from the unbound magnetic marker due to the residual magnetic field in the specimen solution and detects with high sensitivity the signal of the bound target magnetic marker. The magnetic field at the measurement position is regulated so as to intersect the direction of magnetization of the magnetic marker for the measurement target, in order to make the magnetization direction of the magnetic marker that is unbound due to residual magnetism or remanence in the sample solution, intersect the magnetization direction of the magnetic marker for the measurement target. The signal of the bound target magnetic marker can be therefore measured with high sensitivity since it is isolated from the unbound magnetic marker signal.
公开/授权文献
- US08945469B2 Magnetic immunoassay system 公开/授权日:2015-02-03