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In-process phase growth measurement technique in the fabrication of monolithic porous layer open tubular (monoPLOT) columns using capacitively coupled contactless conductivity

Citation

Collins, DA and Nesterenko, EP and Brabazon, D and Paull, B, In-process phase growth measurement technique in the fabrication of monolithic porous layer open tubular (monoPLOT) columns using capacitively coupled contactless conductivity, The Analyst, 138, (9) pp. 2540-2545. ISSN 0003-2654 (2013) [Refereed Article]

Copyright Statement

Copyright 2013 The Royal Society of Chemistry

DOI: doi:10.1039/C3AN00133D

Abstract

A technique for the in-process measurement of polymer stationary phase growth inside fused silica capillaries during the fabrication of monolithic porous layer open tubular (monoPLOT) columns is presented. In this work, capacitively coupled contactless conductivity detection (C4D) was applied as an online measurement tool for porous polymer layer growth within fused silica capillaries. The relationship between effective capillary diameter and C4D response was investigated for two polymers, butyl methacrylate–ethylene dimethacrylate (BuMA–EDMA) and polystyrene–divinylbenzene (PS–DVB) over a range of capillary diameters and layer thicknesses. The described technique can be used with both thermal and photo-initiated approaches for monoPLOT fabrication and provides an accurate, real-time measurement of the porous layer growth within the capillary, which should vastly improve column-to-column reproducibility. The technique was shown to be very precise, with a measured %RSD < 10%.

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:84734
Year Published:2013
Web of Science® Times Cited:10
Deposited By:Austn Centre for Research in Separation Science
Deposited On:2013-05-29
Last Modified:2016-12-19
Downloads:0

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