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Temperature gradient interaction chromatography of polymers: A molecular statistical model
Author(s) -
Radke Wolfgang,
Lee Sekyung,
Chang Taihyun
Publication year - 2010
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201000462
Subject(s) - molar mass , elution , polymer , chromatography , chemistry , gradient elution , volumetric flow rate , temperature gradient , solvent , molar concentration , analytical chemistry (journal) , high performance liquid chromatography , thermodynamics , organic chemistry , physics , quantum mechanics
A new model describing the retention in temperature gradient interaction chromatography of polymers is developed. The model predicts that polymers might elute in temperature gradient interaction chromatography in either an increasing or decreasing order or even nearly independent of molar mass, depending on the rate of the temperature increase relative to the flow rate. This is in contrast to solvent gradient elution, where polymers elute either in order of increasing molar mass or molar mass independent. The predictions of the newly developed model were verified with the literature data as well as new experimental data.