Separates polymers and oligomers in the molecular weight range of 100 D to 1,000,000 D; determines composition and molecular weight of polymerization mixtures, as well as block and random copolymers. This GPC is equipped with triple-detection capability: a Waters 410 differential refractive index detector; a Waters 486 UV-Vis detector; and a Wyatt Technologies TREOS three-angle light-scattering detector, useful for absolute molecular weight determination.