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Evaluation of a miniaturised single-stage thermal modulator for comprehensive two-dimensional gas chromatography of petroleum contaminated soils
Citation
Jacobs, MR and Edwards, M and Gorecki, T and Nesterenko, PN and Shellie, RA, Evaluation of a miniaturised single-stage thermal modulator for comprehensive two-dimensional gas chromatography of petroleum contaminated soils, Journal of Chromatography A, 1463 pp. 162-168. ISSN 0021-9673 (2016) [Refereed Article]
Copyright Statement
Copyright 2016 Elsevier B.V.
DOI: doi:10.1016/j.chroma.2016.08.009
Abstract
A novel miniaturised single-stage resistively heated thermal modulator was
investigated as an alternative to cryogenic modulation for use in comprehensive two dimensional
gas chromatography (GC × GC). The single-stage thermal modulator described
herein yielded average retention time relative standard deviations (RSD) of ≤ 0.2 % RSD
(first-dimension) and ≤ 3.4 % RSD (second-dimension). The average peak widths generated
by the modulator were 72 ± 3 ms, and the peak area precision was better than 5.3 % RSD for
a range of polar and non-polar test analytes. GC × GC analysis can be performed using this
modulator without the requirement for cryogenic cooling or additional pressure control
modules for flow modulation. The modulator and associated electronics are compact and
amenable towards field analysis. The modulator was used for qualitative and quantitative
characterisation of petroleum-contaminated soils derived from a sub-Antarctic research
station at Macquarie Island. The limit of detection compared to standard 1D GC analysis was
improved from 64 to 11 mg kg-1. An automated method of analysing and categorising samples
using principal component analysis is presented.
Item Details
Item Type: | Refereed Article |
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Keywords: | two-dimensional gas chromatography, single-stage thermal modulator, performance evaluation, petroleum spill analysis |
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 |
UTAS Author: | Jacobs, MR (Mr Matthew Jacobs) |
UTAS Author: | Nesterenko, PN (Professor Pavel Nesterenko) |
UTAS Author: | Shellie, RA (Associate Professor Robert Shellie) |
ID Code: | 110742 |
Year Published: | 2016 |
Funding Support: | Australian Research Council (DP130101518) |
Web of Science® Times Cited: | 7 |
Deposited By: | Chemistry |
Deposited On: | 2016-08-11 |
Last Modified: | 2017-10-31 |
Downloads: | 0 |
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