This application note describes the use of Agilent PL aquagel-OH columns for the aqueous size exclusion chromatography analysis of polyvinyl alcohols. These columns combine high pore volume and high column efficiency (>35,000 plates/meter) for maximum resolution. The calculated molecular weight averages were compared with manufacturers’ quoted viscosity values. Calibration was done using pullulan polysaccharides.
This is a document about the method of determining the content of melamine, ammeline, ammelide and cyanuric acid in infant milk-based formula and other food and feed products using the Varian 220-MS Ion Trap GC/MS/MS.
