Principles of Endpoint Detection-1
Electro-mechanical:
Detects a change in electrical conductivity between two electrodes immersed in an
electrolytic solution
Magnetic-mechanical:
Monitors the movement of steel balls within the test solution using magnetic sensors.
Detection of clot formation measured by a change in optical density of test sample.
The detection of fibrin strands by increased light scatter which is measured at 90o angle to light source
Photo-optical:
Nephelometric: