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Infrared photo-initiated fabrication of monolithic porous layer open tubular (monoPLOT) capillary columns for chromatographic applications†

Citation

Collins, DA and Nesterenko, EP and Paull, B, Infrared photo-initiated fabrication of monolithic porous layer open tubular (monoPLOT) capillary columns for chromatographic applications , RSC Advances, 4, (53) pp. 28165-28170. ISSN 2046-2069 (2014) [Refereed Article]

Copyright Statement

Copyright 2014 The Royal Society of Chemistry

DOI: doi:10.1039/c4ra03792h

Abstract

Investigation into the development of a fabrication approach for capillary porous layer open tubular (PLOT) chromatographic columns via infrared (IR) photo-initiated polymerisation and the optimisation of the technique is presented in this work. Polyimide coatings on fused silica capillaries absorb strongly in the visible region of the light spectrum making commonly used ultra-violet and visible light photo-initiated polymerisation methods impossible inside this type of capillary. In addition, polystyrene-based materials, which are commonly used as reversed phases and hydrophobic substrates in both liquid (LC) and gas chromatography (GC) also absorb strongly in the ultra-violet (UV) region making them unsuitable for polymerisation via common photo-initiated methods. However, by using infrared light, photo-polymerisation in polyimide coated capillary was made possible herein. Crucially, selecting a suitable photo-initiator with a high extinction coefficient ensures that the penetration ability of the incident light is greatly reduced thus making the technique highly suited to PLOT column fabrication. The described procedure provides a straight forward method for the photoinitiated fabrication of monoPLOT columns in polyimide coated capillary.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Analytical Chemistry
Research Field:Separation Science
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Paull, B (Professor Brett Paull)
ID Code:93700
Year Published:2014
Web of Science® Times Cited:5
Deposited By:Austn Centre for Research in Separation Science
Deposited On:2014-08-13
Last Modified:2017-10-27
Downloads:0

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