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Peak parking determination of the obstruction factor in lauryl acrylate monolithic CEC columns
Author(s) -
Anderson Gwendolyn J.,
LaPier Zoe,
Cammarata Michael B.,
Cullum Tae Sun,
Bushey Michelle M.
Publication year - 2010
Publication title -
electrophoresis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/elps.200900552
Subject(s) - polymer , acrylate , analyte , thiourea , porosity , polymerization , materials science , chromatography , chemical engineering , chemistry , composite material , organic chemistry , copolymer , engineering
The peak parking method was used to determine the obstruction factor of lauryl acrylate porous polymer monoliths. Polymers were prepared in situ in fused‐silica capillaries using thermally initiated polymerization. These columns have been used for CEC of neutral analytes. Thiourea, which is unretained, was used as the test analyte for the obstruction factor measurement. The obstruction factor was determined to be 0.72 with a SD of (±0.01), which is consistent with the concept that organic porous polymer monoliths are more permeable than traditional LC stationary phases.