The PN3621 Multi-Angle Light Scattering (MALS) detector from Postnova Analytics combines outstanding performance, high precision and reliability design features to facilitate advanced characterization of proteins, conjugates, macromolecules, and nanoparticles. The PN3621 is commonly used in conjunction with Gel Permeation Chromatography (GPC-MALS), Size Exclusion Chromatography (SEC-MALS) or Field-Flow Fractionation (FFF-MALS) to determine distributions of mass, size and composition independent of column calibration by reference standards.