Decomposition of size-exclusion chromatography elution curves of complex branched polymers.
Journal of Chromatography A(2014)
摘要
A new method for the decomposition of non-baseline-resolved multimodal elution curves of SEC with the concentration, light scattering and viscosity detection is presented. The method makes possible the characterization of the polymer-sample components, represented by the peaks forming multimodal elution curves, individually and reduces also the error in the calculation of molecular-weight averages. The procedure is demonstrated on narrow molecular-weight distribution polystyrene standards and their mixture as well as on a grafted polymer sample.
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关键词
Size-exclusion chromatography,Triple detection,Curve decomposition
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