Premium
Separation of polystyrenes by means of open tubular capillary chromatography
Author(s) -
Korolev Alexander A.,
Viktorova Ele.,
Orekhov Vladimir A.,
Kanatyeva Anastasiya Yu.,
Kurganov Alexander A.
Publication year - 2012
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.201101076
Subject(s) - polystyrene , capillary action , polymer , molar mass , chromatography , capillary electrochromatography , calibration curve , analytical chemistry (journal) , materials science , volumetric flow rate , chemistry , composite material , detection limit , mechanics , physics
Simulating polymer separation in flow‐through channels of monolithic columns, separation of a mixture of polystyrene standards was investigated using open tubular capillary column of 2 μm inner diameter. High column efficiency was observed for polymers of molar mass ranged from few tens to few hundred k D as. Column efficiency significantly decreased for polymers with molar mass larger than 500 k D a nevertheless preserving value of few tens of thousands theoretical plates. Calibration curve observed for open capillary column is rather steep and can be well described by simple equation without quadratic term. In spite of low selectivity, capillary columns were able in separating wide range of polystyrene standards due to column high efficiency and in such a way supported an idea of hydrodynamic mechanism of polymer separation in flow‐through channel of monolithic packings.