miniDAWN Static Light Scattering Detector

The miniDAWN® Multi-Angle static Light Scattering (MALS) detector performs absolute characterization of the molar mass and size of macromolecules and nanoparticles in solution, offering superb sensitivity over a wide range of molecular weight, size and concentration. miniDAWN performance for MALS analysis is exceeded only by the DAWN which covers a wider range of sizes and molecular weights with even better sensitivity. Three discrete photodetectors are spaced around the flow cell in an optical geometry, ensuring that measurements are made simultaneously over a broad range of scattering angles.

The miniDAWN is most often used in conjunction with Size Exclusion Chromatography (SEC-MALS) or Field-Flow Fractionation (FFF-MALS) to determine distributions of mass, size and composition, independent of column calibration by reference standards. The miniDAWN and its companion Optilab dRI detector are well-established for MALS analysis, cited in thousands of peer-reviewed publication. With the addition of a ViscoStar differential viscometer or WyattQELS module, the triple-detection system can analyze conformation and sizes below the rg limit.\

  • Mw from 200 Da to 10 MDa
  • Sensitivity: 1.0 µg/mL BSA (66.4 kDa)
  • rg from 10 to 50 nm, up to 150 nm with shape-specific models
  • Ultra-stable laser
  • Compatible with any HPLC system
  • High signal-to-noise ratio, low-stray-light flow cell
  • Excellent sensitivity for small molecules down to 200 g/mol
  • Wide measurement range for particles up to 50 nm in radius
  • Immune to saturation at high analyte concentration, thanks to 24-bit A/D conversion and programmable laser attenuation
  • Corrects for absorbing samples via the Forward Laser Monitor
  • Optional WyattQELS module for online DLS studies
  • Integrated COMET ultrasonic dust buster
  • Microcuvette adapter kit for offline measurements
  • Trusted by thousands across the world
  • New User Interface – System Readiness Monitor, Real-time Instrument health indicators, Customizable User Preferences, System Control Panel
  • Smart Services Platform with user experience enhancements and improved workflow