AN2301: Lignosulfonate analysis by AF4-MALS

Lignosulfonate Analysis

Ligonsulfonates require costly, time-consuming purification of salts, sugars and other low-molecular-weight contaminants prior to analysis by GPC, in order to prevent column damage. This application note describes the use of AF4-MALS to characterize lignosulfates. AF4-MALS inherently combines effective purification of low-molecular-weight species with robust separation and absolute molar mass determination, making it the technique of choice for this application, particularly in an industrial setting.