TEST DIRECTORY

High performance liquid chromatography (HPLC)
A chromatography technique using a liquid mobile phase. HPLC separates a mixture into components promptly and accurately, using a column filled with a high-density absorbent and a high-pressure pump.

Enzyme-linked immunosorbent assay (ELISA)
Antibodies linked to the solid phase are reacted with antigens that are secondarily reacted with enzyme-labeled antibodies. After adding a chromogenic substrate, the enzyme activity is measured.

Radio immunoassay (RIA)
A target antigen is labeled with radioactive isotope (RI) and bound to its specific antibodies which is then competitively reacted with an antigen in a specimen. After the antigen-antibody reaction, the bound labeled antigens (bound) are separated from the unbound ones (free), and the antigen concentration is determined based on the proportion of radioactivity.
　To separate the bound and free antigens (B/F separation), the following methods are used. Solid-phase method:Antibodies are linked to the solid phase. Double antibody method: Antigen-antibody complexes are bound to the second antibody and precipitated. Ammonium sulfate precipitation method: Antigen-antibody complexes are precipitated by ammonium sulfate. PEG method: Antigenantibody complexes are precipitated by a precipitation reagent.

Chemiluminescent enzyme immunoassay (CLEIA)
Antibodies linked to the solid phase are reacted with antigens that are secondarily reacted with enzyme-labeled antibodies.
After adding a chemiluminescent substrate, the emission intensity is measured.

Radio immunoassay (RIA)
A target antigen is labeled with radioactive isotope (RI) and bound to its specific antibodies which is then competitively reacted with an antigen in a specimen. After the antigen-antibody reaction, the bound labeled antigens (bound) are separated from the unbound ones (free), and the antigen concentration is determined based on the proportion of radioactivity.
　To separate the bound and free antigens (B/F separation), the following methods are used. Solid-phase method:Antibodies are linked to the solid phase. Double antibody method: Antigen-antibody complexes are bound to the second antibody and precipitated. Ammonium sulfate precipitation method: Antigen-antibody complexes are precipitated by ammonium sulfate. PEG method: Antigenantibody complexes are precipitated by a precipitation reagent.

Electro chemiluminescence immunoassay (ECLIA)
Antibody-bound beads are reacted with antigens that are secondarily reacted with antibodies labeled with rutheniumpyridine complexes, which promotes the electrochemical reaction. The emission intensity of ruthenium-pyridine complexes is measured.

Enzyme-linked immunosorbent assay (ELISA)
Antibodies linked to the solid phase are reacted with antigens that are secondarily reacted with enzyme-labeled antibodies. After adding a chromogenic substrate, the enzyme activity is measured.

Flow cytometry
A technique for analysis of individual cells. Cells stained with fluorochrome-labeled monoclonal antibodies are flown in a stream of solution at a high speed and are passed through the laser beam. The cells are individually analyzed by forward scatter (size of the cell), 90° side scatter (internal complexity of the cell), and fluorescence intensity (cell surface expression of the antigen).
Two-color flow cytometry uses a combination of fluorochromes for double staining.

Enzyme-linked immunosorbent assay (ELISA)
Antibodies linked to the solid phase are reacted with antigens that are secondarily reacted with enzyme-labeled antibodies. After adding a chromogenic substrate, the enzyme activity is measured.

Enzyme-linked immunosorbent assay (ELISA)
Antibodies linked to the solid phase are reacted with antigens that are secondarily reacted with enzyme-labeled antibodies. After adding a chromogenic substrate, the enzyme activity is measured.

Flow cytometry
A technique for analysis of individual cells. Cells stained with fluorochrome-labeled monoclonal antibodies are flown in a stream of solution at a high speed and are passed through the laser beam. The cells are individually analyzed by forward scatter (size of the cell), 90° side scatter (internal complexity of the cell), and fluorescence intensity (cell surface expression of the antigen).
Two-color flow cytometry uses a combination of fluorochromes for double staining.

Flow cytometry
A technique for analysis of individual cells. Cells stained with fluorochrome-labeled monoclonal antibodies are flown in a stream of solution at a high speed and are passed through the laser beam. The cells are individually analyzed by forward scatter (size of the cell), 90° side scatter (internal complexity of the cell), and fluorescence intensity (cell surface expression of the antigen).
Two-color flow cytometry uses a combination of fluorochromes for double staining.

Flow cytometry
A technique for analysis of individual cells. Cells stained with fluorochrome-labeled monoclonal antibodies are flown in a stream of solution at a high speed and are passed through the laser beam. The cells are individually analyzed by forward scatter (size of the cell), 90° side scatter (internal complexity of the cell), and fluorescence intensity (cell surface expression of the antigen).
Two-color flow cytometry uses a combination of fluorochromes for double staining.

Flow cytometry
A technique for analysis of individual cells. Cells stained with fluorochrome-labeled monoclonal antibodies are flown in a stream of solution at a high speed and are passed through the laser beam. The cells are individually analyzed by forward scatter (size of the cell), 90° side scatter (internal complexity of the cell), and fluorescence intensity (cell surface expression of the antigen).
Two-color flow cytometry uses a combination of fluorochromes for double staining.

Enzyme-linked immunosorbent assay (ELISA)
Antibodies linked to the solid phase are reacted with antigens that are secondarily reacted with enzyme-labeled antibodies. After adding a chromogenic substrate, the enzyme activity is measured.