Presentation Profile
Polymer Chromatography: Beyond MW and Polydispersity with Advanced Detection GPC/SEC
Currently Scheduled: 10/14/2025 - 8:00 AM - 9:30 AM
Room: Hibiscus
Main Author
John Erne - Analytical Outfitters, LLC
Abstract:
For polymer scientists, molecular weight and polydispersity are the two most critical pieces of information about a given sample. Size Exclusion Chromatography, usually carried out as Gel Permeation Chromatography, is the go-to technique to determine these parameters. From the same sample preparation, much more information about the sample can be gained than just Mw, Mn, Mz. Additional detectors including light scattering (SEC-LS or SEC-MALS), a second concentration detector (UV-VIS or dRI), and inline viscometers unlock additional information about the sample. These add-ons can also simplify calibration and verification. Column and standards selection, method development and troubleshooting basics will be covered at the end for those interested in expanding their familiarity with GPC/SEC.
