Research Interests

My principal research interest concerns the development of novel methods for the separation and determination of trace constituents in a wide variety of sample types, including environmental, biological and industrial applications.

Over the last 10 years I have been involved with developing novel liquid chromatography processes linked with selective detection systems for the determination of trace metal species. The theoretical basis of the research involves the study of metal coordination chemistry processes at surfaces and how this affects chromatographic selectivity. The main focus of the work is the development and characterisation of metal selective chromatographic substrates for the separation of specific groups of metal species. The substrates contain specially designed chelating groups which are impregnated or chemically bonded to the stationary phase.

This area of separation science has become known as high performance chelation ion chromatography (HPCIC) and is particularly suited for the determination of trace metals in complex and difficult samples such as seawater, sediments, biological material and industrial samples with high salt content or large concentrations of interfering metals.

In parallel with the above main study I have been developing high sensitivity spectrophotometric detection systems so that HPCIC can determine metal species in samples at the sub part per billion level.


Recent Publications

2003

2002

2001

2000

1999

1998

1997

1996


Studentships

Studentships since 1996:

Dates Student Funding Body Award
and
Date
Present
Employment
Title
2001-2004 A. Cartwright EPSRC Industrial CASE/GlaxoSmithKline In progress
-
Development and application of tandem chromatography-mass spectrometry techniques for pharmaceutical analysis
With Dr E.H. Evans (Director of Studies)
1999-2001 P. McCormack University of Plymouth Studentship/astraZeneca Environmental Laboratory Writing thesis University of Plymouth, U.K.
The separation and identification of small highly polar or ionisable organic molecules in water
With Professor S.J. Rowland
1998-2001 E.R. Unsworth EPSRC Ph.D.
2001
-
Measurement and modelling of uranium and thorium in natural waters [abstract]
With Professor S.J. Hill (Director of Studies)
1997-2000 J. Cowan University of Plymouth Studentship/Dionex UK In progress
-
The development of novel methods for the determination of trace metals using ion chromatography and electrophoresis techniques
With Dr E.P. Achterberg
1997-2000 J.B. Truscott Laboratory of the Government Chemist Ph.D.
2000
University of Plymouth, U.K.
Determination of actinide elements in environmental samples by ICP-MS [abstract]
With Dr E.H. Evans (Director of Studies)
1996-1999 M.J. Shaw University of Plymouth Studentship Ph.D.
2000
University of Tasmania, Australia
The fabrication and study of metal chelating stationary phases for the high performance separation of metal ions [abstract]
With Professor S.J. Hill
1995-1998 A.B. Guy EPSRC/Industrial Case Ph.D.
1999
Penwest Pharmaceuticals Ltd., Surrey, U.K.
Antimony speciation by chromatographic sample introduction to plasma spectroscopy [abstract]
With Professor S.J. Hill (Director of Studies)
1995-1998 J.R. Murphy University of Plymouth Studentship Ph.D.
1998
Atomic Spectroscopy Product Specialist, Varian Ltd., U.K.
On-line sample pre-treatment of environmental samples for use with atomic spectrometry [abstract]
With Professor S.J. Hill (Director of Studies)
1994-1997 S.A. Hardy EPSRC CASE Ph.D.
2000
University of Plymouth, U.K.
The determination of trace metals by capillary electrophoresis [abstract]
With Professor P.J. Worsfold
1993-1996 R.M.C. Sutton University of Plymouth Studentship Ph.D.
1997
Procter & Gamble, U.K.
Investigation of chelating dye impregnated resins for the selective adsorption and separation of trace metals from aqueous solutions [abstract]
With Professor S.J. Hill



Top of this Page School of Earth, Ocean and Environmental Sciences