Patent ID: 7416698
Filing Date: 2008-08-26
Classification: G01N

Abstract:
1. A process for characterizing a sample comprising a population of linear macromolecules of interest and a population of long chain branched macromolecules of interest, the process characterized by the steps of: (a) providing a sample comprising a population of linear macromolecules of interest comprising a select fraction ( (b) providing a flow through separating medium ( (c) determining said linear velocity range; (d) introducing the sample of dissolved linear macromolecules of interest and long chain branched macromolecules of interest into the liquid eluant; (e) flowing the liquid eluant under pressure through the channels of the separating medium at a linear velocity that is within the range specified in step (c), whereby the sample macromolecules of interest emerge from the separating medium separated into successive elution volumes of the liquid eluant, characterized by said linear macromolecules of interest eluting ( (f) differentiating the linear macromolecules of interest from the long chain branched macromolecules of interest based on their successive elution volumes established in step (e).