TdB Labs offer a series of analyses specific to derivatives of dextran, polysucrose and other watersoluble polymers. This includes molecular weight determination using gel permeation chromatography (GPC), also known as size exclusion chromatography (SEC). We can also perform quantitative determinations of various substituents such as sulfates, carboxyls, amines and more. Our analytical service also includes optical rotation, spectrophotometric and spectrofluorimetric studies, viscosity etc. Please contact us if you have specific demands.