Profile: Kromatek Ltd. supplies instruments, accessories and consumables for all types of chromatography and spectroscopy measurement. DiNa-spray columns are a fritless direct spray needle column for use with nano-electrospray (nanoESI) giving absolute sensitivity for a variety of applications. Protein separations can be made quickly and easily just prior to the mass spec inlet. Static laser light scattering is an absolute method for molar mass determination, and facilitates the direct determination of the characteristic properties of the macromolecular species without previous calibration or any other type of assumption. It is ideal for studying synthetic, natural, and bio-polymers in solution, including proteins and polysaccharides.