What techniques are used in immunology laboratory to study antigen, antibody and immune cells?

Immunology laboratories employ a wide range of techniques to study antibody, antigen, and immune cells. The most commonly used techniques include: 

• Flow cytometry
• Enzyme linked immunosorbent assay (ELISA)
• Immunofluorescence 
• Immunochemical technique
• Immunohistochemistry
• Immunoassay
• Immunoprecipitation
• Serology 
• Immunodiffusion
• Radioimmunoassay
• Complement fixation test
• Immunoelectrophoresis