Postnova model 3609 Multi-Angle Light Scattering detector (MALS) for FFF and SEC/GPC
Multi-Angle Light Scattering detector
Postnova has collected a unique competence in the area of Laser Light Scattering and has developed the unique model 3609 MALS - Multi-Angle Light Scattering detector series. Model 3609 MALS is a high performance MALS detector system with a unique range of specifications:
Economic Angular Range
Model 3609 MALS detector system employs a well selected range of 9 scattering angles and therefore offers a very good economic performance ratio. It does not have the same full range of angles as the high-end model 3621 MALS, but still has all angles needed to become a reliable, rugged and precise light scattering instrument for all main applications of today’s bio-, nano- and polymer laboratories. All angles in model 3609 are carefully selected in such a way that the majority of the applications is easily possible and that the resulting molar mass and size determination yields precise and stable results. Because of its more restricted number of angles, model 3609 MALS system may not be eligible for all high-end nanotech and polymer applications, especially for molar masses above 10E7 Da and sizes above 250 nm. However, because it employs 9 full angles, the 3609 has a superior performance compared to any other mid range MALS detector system, thus allowing high quality data and angular fits providing fully scientific and meaningful results for smaller to mid size samples.
For a precise and robust determination of molar mass and particles size, it is important to cover a broad range of angles which also includes sufficiently low angles. In order to ensure a superior performance the PN3609 employs angles starting from as low as 28°.
Clean Vertical Flow Cell
The Postnova model 3609 offers a vertical flow cell where the sample can pass though easily, without any obstacles in its way. The flow cell has no right angle entry and outlets which could induce shear forces or cause particles to settle and adsorb.
Advanced Optic-Electronics
Model 3609 MALS employs the latest opto-electronic designs, including digital signal processing for each of the 9 angles. The electronics is based on a true 24 bit resolution AD system and offers a broad dynamic signal range. For maximum flexibility it is possible to read-in up to 3 external analogue signals. The PN3609 has the smallest footprint available in the market, saving rare lab space and allowing a flexible use at different locations and also seamlessly fits into the line of other Postnova products.
