TESTA Analytical’s COMBO-TWO MALS/DRI combination detector for Gel Permeation Chromatography (GPC) is helping biopharmaceutical and advanced materials researchers unlock essential macromolecular physical properties including molecular weight, structure, and conformation.
The baseline signal stability of any GPC detector is important, as it is a limiting factor in peak determination. COMBO-TWO is designed to deliver exceptional results by combining a high-performance 7-angle Multi-Angle Light Scattering (MALS) and an ultra-stable Differential Refractive Index (DRI) detector that operate at the same wavelength with minimal delay volume.
The instrument is fully compatible with all commercial GPC systems and has high thermal stability, operating from room temperature up to 80°C. Obtaining highly accurate and reliable MALS and DRI data achieved by injecting the sample into the low-volume flow cell.
Carlo Dessy, Technical Director of TESTA Analytical, said: “The outstanding stability of our COMBO-TWO detector package is particularly essential for high-resolution GPC applications which can have separation times of up to one hour.
“Our customers appreciate the broad media compatibility of the detectors, and their built-in automatic cell-safety shut off capability that eliminates the possibility of a GPC flow cell bursting if it becomes blocked."
For further information about the COMBO-TWO please visit https://www.testa-analytical.com/gpc-sec-chromatography.html or contact TESTA Analytical on +49-30-864-24076 / info@testa-analytical.com.
