1200 Series Evaporative Light Scattering Detector 

For sensitive and universal detection in isocratic and gradient analysis
The Agilent 1200 Series Evaporative Light Scattering Detector (ELSD) is a powerful tool for sensitive detection of any compound that is less volatile than the mobile phase. It provides an essentially universal measurement under isocratic and gradient conditions not dependent on a compound´s absorbance, fluorescence, or electroactivity. Low temperature evaporation technology enables detection of semi-volatile and thermo-sensitive compounds at low levels.

See how the ELSD works