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Ilona L. Davies

University of Leeds

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Featured researches published by Ilona L. Davies.

Chromatographia | 1990

Solvent-vented injection in the analysis of agrochemicals by capillary supercritical fluid chromatography

Sameena Ashraf; Keith D. Bartle; Anthony A. Clifford; Ilona L. Davies; Robert Moulder

SummaryCapillary supercritical fluid chromatography was performed with solvent-vented injection. Dilute samples of agrochemical mixtures were chromatographed and a study of detector response vs. quantity injected made.

Polycyclic Aromatic Compounds | 1990

Coupled Supercritical Fluid Extraction/Chromatography of Polycyclic Aromatic Hydrocarbons: Correlation with Solubility Calculations

Gavin F. Shilstone; Mark W. Raynor; Keith D. Bartle; Anthony A. Clifford; Ilona L. Davies; Saad A. Jafar

Abstract The solubility of: naphthalene, fluorene, phenanthrene, pyrene, and chrysene in supercritical CO2 at two temperatures and pressures up to 200 atm were calculated from fugacities derived via the Peng-Robinson equation of state. The calculated solubilities were correlated with the results of experiments in which polycyclic aromatic hydrocarbons (PAH) in fuel mixtures were extracted with supercritical CO2 and analysed by supercritical fluid chromatography and by gas chromatography.

Analytical Chemistry | 1988

On-line fractionation and identification of diesel fuel polycyclic aromatic compounds by two-dimensional microbore high-performance liquid chromatography/capillary gas chromatography

Ilona L. Davies; Keith D. Bartle; Paul T. Williams; Gordon E. Andrews

Analytical Chemistry | 1988

Polymer additive characterization by capillary supercritical fluid chromatography/Fourier transform infrared microspectrometry

Mark W. Raynor; Keith D. Bartle; Ilona L. Davies; A. Williams; Anthony A. Clifford; John M. Chalmers; Bernard W. Cook

Analytical Chemistry | 1987

Application of automated on-line microbore high-performance liquid chromatography/capillary gas chromatography to diesel exhaust particulates

Ilona L. Davies; Mark W. Raynor; Paul T. Williams; Gordon E. Andrews; Keith D. Bartle

Journal of Chromatographic Science | 1988

Automated Chemical Class Characterization of Kerosene and Diesel Fuels by On-Line Coupled Microbore HPLC/Capillary GC

Ilona L. Davies; Keith D. Bartle; Gordon E. Andrews; Paul T. Williams

Hrc-journal of High Resolution Chromatography | 1988

Supercritical fluid extraction / capillary supercritical fluid chromatography / Fourier transform infrared microspectrometry of polycyclic aromatic compounds in a coal tar pitch

Mark W. Raynor; Ilona L. Davies; Keith D. Bartle; Anthony A. Clifford; A. Williams; J. M. Chalmers; Bernard W. Cook

Analytical Chemistry | 1988

LC/GC, SFC/GC, and SFE/GC

Ilona L. Davies; Mark W. Raynor; Jacob P. Kithinji; Keith D. Bartle; Paul T. Williams; Gordon E. Andrews

Hrc-journal of High Resolution Chromatography | 1988

Preparation of robust tapered restrictors for capillary supercritical fluid chromatography

Mark W. Raynor; Keith D. Bartle; Ilona L. Davies; Anthony A. Clifford; A. Williams

Journal of Chromatographic Science | 1989

Capillary Supercritical Fluid Chromatography with Fourier Transform Infrared Detection

Keith D. Bartle; Mark W. Raynor; Anthony A. Clifford; Ilona L. Davies; Jacob P. Kithinji; Gavin F. Shilstone; John M. Chalmers; Bernard W. Cook

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Keith D. Bartle

University of Leeds

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Mark W. Raynor

University of Leeds

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Anthony A. Clifford

University of Leeds

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Gordon E. Andrews

University of Leeds

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Paul T. Williams

University of Leeds

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Jacob P. Kithinji

University of Leeds

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A. Williams

University of Leeds

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Gavin F. Shilstone

University of Leeds

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John M. Chalmers

Imperial Chemical Industries

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M.K. Abbass

University of Leeds

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