Light scattering detector for universal detection in preparative applications

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Article No.: A0754-5
Articlename: Light Scattering Detector Sedex LC

Light scattering detector for universal detection in preparative applications

Standard universal ELSD detection for HPLC

Evaporative Light Scattering Detection (ELSD) is a universal modern technology with which every analyte that is less volatile than the mobile phase can be detected. Using the unique Low Temperature technology, this detector allows the achievement very high sensitivity.The technology is gradient compatible and is independent of the absorption characteristics of the eluents. Compounds can be universally measured with this detector (carbohydrates, proteins, peptides, polymers, lipids, steroids, etc.), regardless of their fluorescence, absorption or refractive-index characteristics. Comprehensive SOP protocols for GLP conformity and validation procedures are available. This detector can be controlled with OpenLab® EZChrom and ClarityChrom® software, via RS-232 or via the keypad and digital display on the front panel, allowing it to be integrated into almost any LC system.

Key Features

Technical Data


Detector type Light scattering detector
Detection channels 1
Light source blue LED, elapsed-time counter
Sensitivity 5 ng


Gas nitrogen or highly clean pressured air
Gas flow rate < 3 l/min
Gas inlet pressure min. 3.5 bar
HPLC flow rate 200 µl/min - 2 ml/min

Heated zone

Temperature range ambient to 100 °C


Filter dedicated numerical algorithm
Analog outputs 0 – 1 V
Analog control input contact closure, TTL for ready, autozero
Control USB, RS-232
Power-down methods shut-off: gas, light source, heating and/or photodiode


Dimensions 250 mm x 330 mm x 530 mm (W x H x D)
Weight 15 kg

Documents and more information

Certified Quality 

KNAUER is known for the quality of its products and has been certified several times. We produce high-tech laboratory instruments for research, routine analysis and production.
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In addition, we have extended documentation about all our products, including CE Declarations of Conformity.
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