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Polydimethylsiloxane-functionalized monolithic silica column for reversed-phase capillary liquid chromatography

✍ Scribed by Qiaoli Zhou; Pengfei Zhang; Li Jia

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
249 KB
Volume
34
Category
Article
ISSN
1615-9306

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✦ Synopsis

Abstract

A polydimethylsiloxane (PDMS)‐modified monolithic silica column was prepared for performing reversed‐phase capillary liquid chromatography. The prepared PDMS column has a permeability of 6.4×10^−14^ m^2^ with a plate height <9.2 μm. Alkylbenzenes and polycyclic aromatic hydrocarbons (PAHs) were well separated with the PDMS stationary phase, which exhibited similar selectivity and separation mechanism to that of octadecyl stationary phase. The hydrophobic interactions between the analytes and the PDMS stationary phase mainly play the roles for the separation of alkylbenzenes and PAHs. The characteristics of the PDMS column for the separation of alkylbenzenes and PAHs demonstrated that it would be a promising alternative to the octadecyl column.

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