The Differential Refractive Index (DRI) detector from Testa Analytical Resolution e.Okay provides unmatched accuracy and reliability for dedication of absolute focus and whole mass stability in Gel Permeation Chromatography / Dimension Exclusion Chromatography (GPC/SEC) purposes
The baseline sign stability of any liquid chromatography detector is essential, as it’s a limiting think about peak dedication. Detector stability good points much more significance the place evaluation time is lengthy, akin to is usually encountered in excessive decision GPC/SEC purposes.
Use of a number of columns is frequent in GPC/SEC as a way to extend decision and in addition to extend the accessible dynamic vary by way of molecular weight. As such, excessive decision GPC/SEC measurements can usually take 30 to 60 minutes for a single separation. Because of this, most HPLC detectors tailored to be used in GPC/SEC will present a big baseline drift between the start and finish of the chromatogram thus negatively influencing the flexibility to precisely decide the start and finish of pattern peaks and subsequently to calculate the right polydispersity.
Working from room temperature as much as 80° C with excessive thermal stability, TESTA Analytical’s DRI detector has been designed with specific consideration to eliminating drift. As a consequence of its unmatched baseline stability, the DRI detector delivers glorious efficiency for chromatographic separations of any length.
For additional info on the Differential Refractive Index (DRI) detector please go to https://www.testa-analytical.com/gpc-sec-chromatography.html or contact Testa Analytical Options on +49-30-864-24076 / [email protected].