Sysmex Nederland

Viscotek SEC-MALS 20

  • Up to 20 angles for more accurate results
  • Measure absolute molecular weight and Rg
  • Can be combined with any existing SEC system
  • A single powerful software package to control the system and analyse data - OmniSEC
  • Vertical flow cell with advanced radial optics for improved performance


  • All
  • Brochure

Multi angle light scattering detector

The Viscotek SEC-MALS 20 is a modular multi angle light scattering detector that can easily be used with any existing SEC system, adding the power of light scattering detection for molecular weight and molecular size measurements. It can also be purchased as part of a complete system package. The signals from the SEC-MALS and other detectors connected to the system are analyzed by the most advanced GPC software available, OmniSEC.

The SEC-MALS 20 can be used to measure the absolute molecular weight and oligomeric state of proteins, independent of retention time. It can also be used to analyse natural and synthetic polymers, including the measurement of molecular size over the widest possible range.

The SEC-MALS 20 is part of a range of Viscotek light scattering detectors offering maximum choice of system from a single supplier.

Request a quote



Detectors 1
Detector: SEC-MALS 20
Measurement principle: Multi-Angle Light Scattering
Light source:660nm, 120 mW laser
Number of angles: 20
Cell volume: 63 µL
Detector type: Custom photodiodes
Data acquisition rate: 5 Hz

Measurement type 1
Measurement type: Molecular Weight
Measurement range: <1000 - >107 g/mol
Molecular weight accuracy: ±2% for NIST standard SRM 1478
Measurement principle: Multi-Angle Light Scattering (MALS)
Data models: Zimm, Berry, Debye
Minimum sample required: 1 µg 105 kDa Polystyrene, 2 µg BSA

Measurement type 2
Measurement type: Radius of Gyration (Rg)
Measurement range:10 - 150 nm
Measurement principle: Multi-Angle Light Scattering (MALS)
Data models: Zimm, Berry, Debye

Temperature range: Ambient to 60°C
Analogue signals accepted: 4 x ±10 V 24 bit
Laser safety: Class 1Power:90-250V, 50/60 Hz
Dimensions:26 (W) x 46 (D) 16 (H) cm

Create Pdf
Enjoy our Media Centre
  • All
  • Documents
  • Podcast
  • Images
  • Videos
See the Podcast