GPC/Light Scattering/Viscometry also known as TRIPLE DETECTOR GPC is the most comprehensive chromatography technique for polymer characterization. It employs Refractive Index Detector (with or without UV Detector), Dilute Solution Viscometry and Light Scattering all in series to determine molecular weights, distribution and related solution parameters. The triple detection GPC method is independent of calibration standards. Refractive Index Detector provides concentration profile and Refractive Index Increment (dn/dc), Light Scattering measures absolute Molecular Weight (MW) and Radius of Gyration (Rg), and Viscometer reveals Intrinsic Viscosity (), Mark-Houwink-Sakurada Constants (a and K), and Hydrodynamic Radius (Rh).

In Triple Detector GPC, all three detectors are complementary to each other. In combination they can be used for various complex macromolecular studies such as structure and branching analysis, aggregation and crosslinking analysis, conformation and folding analysis, sample purity analysis, copolymer composition analysis and others.