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A new method for correcting axial dispersion in GPC
Author(s) -
Marais L.,
Gallot Z.,
Benoît H.
Publication year - 1977
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1977.070210721
Subject(s) - dispersity , dispersion (optics) , set (abstract data type) , calibration , point (geometry) , characterization (materials science) , materials science , volume (thermodynamics) , order (exchange) , mathematics , computer science , optics , physics , thermodynamics , polymer chemistry , nanotechnology , statistics , geometry , finance , economics , programming language
In this paper, a new method for correcting GPC results in order to take into account the axial dispersion of a given set of columns is proposed. The idea is to evaluate the different average molecular weights and the polydispersity for a given elution volume. In order to do so, one needs only to know the efficiency of the set of columns and the different derivatives at a given point of the chromatogram. Some possible applications of this method are reviewed mainly for the characterization of polydispersity and for the determination of the viscosity law if one uses the universal calibration.