Analyzer and analyzing method

Abstract

The present invention is an analyzer for analyzing a target substance contained in a sample using a reagent containing magnetic particles, the analyzer comprising: a magnetic capturing section that comprises a first holder configured to hold a container accommodating a liquid specimen containing a sample and the reagent containing the magnetic particles and that comprises a first magnetic force generating member configured to magnetically capture the magnetic particles in the container held by the first holder; a target substance separating section that comprises a second holder configured to hold the container and a second magnetic force generating member configured to magnetically capture the magnetic particles in the container held by the second holder, and that discharges a cleaning liquid into the container held by the second holder and aspirates a liquid in the container held by the second holder while magnetically capturing the magnetic particles in the container with the second magnetic force generating member; and a container transferring section configured to transfer the container from the magnetic capturing section to the target substance separating section, wherein the first magnetic force generating member of the magnetic capturing section is arranged on a lower side of the container held by the first holder and is configured to magnetically capture the magnetic particles in the container held by the first holder. The present invention is also to present an analyzing method for analyzing a target substance contained in a sample using a reagent containing magnetic particles.

Description

Technical field: [0001] The invention relates to an analysis device and an analysis method, in particular to an analysis device and an analysis method for analyzing a target substance contained in a sample with a reagent containing magnetic particles. Background technique: [0002] There is known an analysis device for analyzing a target substance contained in a sample using a reagent containing magnetic particles (for example, refer to Japanese Patent Laid-Open (Japanese Patent Laid-Open) No. 2001-91521). This analysis device performs BF (Bound-Free) separation processing to separate the immune complex containing the target substance from the unreacted substance. In the BF separation process, the immune complex generated by the reaction of the analyte (antigen or antibody) in the sample with magnetic particles is captured to the inner wall of the reaction vessel by magnetic force, wherein the magnetic particle binds the reaction specifically bound to the analyte Inject the...

AI Technical Summary

Problems solved by technology

[0004] However, in the analysis device disclosed in the above-mentioned Japanese Patent Laid-Open (Japanese Patent Laid-Open) No. 2001-91521, in order to prevent the re-diffusion of the magnetic particles captured in advance on the inner surface of the container, in the adopted structure, it is necessary to separate the reaction container from its The magnetic force continues to be supplied during the period when the previous area of ​​the cleaning area is transported to the cleaning area

Therefore, there is a problem that the degree of freedom of the device structure of the BF separation process is limited

Images