Agilent Technologies 1260 Infinity Quaternary Liquid Chromatography System for flow up to 10 mL/min or 600 bar. Equipped with a standard autosampler, thermostatted column compartment, and variable wavelength UV detector. Absolute molecular weight determination achieved by online light scattering and differential refractive index detection using Wyatt Technologies miniDAWN TREOS and Optilab T-rEX detectors.