size exclusion chromatography, sec, gel permeation chromatography, gpc, light scattering, viscosity, viscometry, molecular weight, polymer characterization, protein characterization, molecular weight distribution, Mark-Houwink, triple detection, copolymer, macromolecule, molar mass, highspeed, polymer standard, gpc column, columns, pore size analysis, wingpc, gpc detector, analytical service, gpc trainings course, sec software, particle standards