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Front Cover: A thermodynamic study of capillary electrochromatographic retention of aromatic hydrocarbons on a lauryl acrylate porous polymer monolithic column with measured phase ratio
Author(s) -
Daniels Charlisa,
Li Si Ying,
Iba Brady,
Zhao Yizhou,
Kuklinski Nicholas,
Bushey Michelle M.
Publication year - 2021
Publication title -
journal of separation science
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.202170161
Subject(s) - monolith , capillary electrochromatography , chemistry , polymer , porosity , phase (matter) , capillary action , acrylate , electrochromatography , benzene , analytical chemistry (journal) , chromatography , chemical engineering , materials science , organic chemistry , copolymer , composite material , capillary electrophoresis , engineering , catalysis
DOI: 10.1002/jssc.202001285 The cover picture shows the elegant direct measurement of phase ratio via capillary electrochromatography (CEC), using a porous polymer monolith (PPM) as the stationary phase. The accurate measurement of phase ratio is needed to determine the thermodynamic parameters of reversed phase retention on lauryl acrylate PPMs used in a CEC mode. Linear van't Hoff plots combined with the newly acquired phase ratios yield enthalpies, entropies, and Gibbs free energies of retention for an alkyl benzene series of analytes across a thirty‐degree temperature range.