Automated liquid-phase immunoassay apparatus

A liquid-based immune reaction analysis device using a cuvette having a plurality of chambers, a sample, a reagent, and magnetic beads being filled in the chambers, a tubular dispensing tip and a cup-shaped and non-magnetic washing tip being seated on the cuvette, comprising:

• a cuvette module to which the cuvette is mounted;
• a sampling arm in which a dispensing tip seated on the cuvette is detachably fitted to one end of the sampling arm;
• a straw arm in which a hollow is formed inside, the washing tip seated on the cuvette being detachably fitted to one end of the straw arm, and a magnetic body in the form of a beam configured to move up and down through the hollow;
• and
• a remover module that detaches the dispensing tip from the sampling arm and the washing tip from the straw arm, and places the dispensing tip and the washing tip on the cuvette.