Detectors
Testa Analytical Launch New GPC/SEC Combination Detector
Jan 11 2023
Combination GPC/SEC Detector delivers outstanding macromolecular characterisation
Testa Analytical has developed a new Multiple Angle Light Scattering/Differential Refractive Index (MALS/DRI) combination detector package for more demanding Gel Permeation Chromatography (GPC/SEC) applications.
Delivering absolute molecular weight data from small to large molecules, MALS has established itself as a tried and trusted GPC/SEC detection technique for polymer, protein, and polysaccharide applications.
However, the most accurate and sensitive results can be only achieved by pairing MALS with a DRI detector, designed to deliver concentration information detected at the very same wavelength.
The new COMBO-TWO MALS/DRI detector package from Testa Analytical brings together a perfectly matched combination of a high performance 7-angle MALS and an ultra-stable DRI detector - both designed to optimally operate using an integral 640nm light source. Fully compatible with all commercial GPC/SEC systems, the unique COMBO-TWO offers the lowest possible delay volume between the MALS and DRI detectors enabling exceptional results to be routinely obtained. Operating from room temperature up to 80°C, with high thermal stability, COMBO-TWO is simple to use - just inject your sample into the low-volume flow cell to obtain highly accurate and reliable MALS and DRI data.
More information online
Events
May 11 2025 Vienna, Austria
May 18 2025 Tempe. AZ, USA
May 21 2025 Birmingham, UK
Jun 01 2025 Baltimore, MD, USA
Jun 15 2025 Bruges, Belgium