Application of GC and GC-MS, in conjunction with the biological marker concept, to problem solving in a wider context
Graph theoretical calculations and their application to geochemically interesting compounds
Computer applications in organic geochemistry
I obtained my Ph.D. in organic geochemistry from the University of Bristol in 1985, having worked in the Organic Geochemistry Unit under the direction of Professor J.R. Maxwell. In January 1986, I moved to the School of Geology & Geophysics, University of Oklahoma to work with Professor R.P. Philp on the petroleum geochemistry of the Anadarko Basin. The southern hemisphere beckoned and, in April 1988, I moved on to the Department of Applied Chemistry, Curtin University of Technology in Perth, Western Australia. Whilst there, I worked with Professor R. Alexander and Professor R.I. Kagi (Centre for Petroleum and Environmental Organic Geochemistry) on the alkylbiphenyl geochemistry of the Canning Basin and the analysis of halocarbon contamination in the potable water supplies of Perth. In December 1989 I returned to the U.K. and, in February 1990, I was offered a BP EMRA by Professor S.J. Rowland in, as it was then, the Department of Environmental Sciences, University of Plymouth. We applied a mass balance approach to the early diagenesis of organic matter in offshore Peru sediments and observed the formation of a fraction we called "uncharacterised" on a short time-scale. After completing the EMRA, I stayed in Plymouth and accepted the post of Scientific Officer in the Petroleum and Environmental Geochemistry Group (PEGG). In the summer of 2000 I was offered and accepted a Senior Lectureship in the School of Environmental Sciences, now the School of Geography, Earth and Environmental Sciences (SoGEES). In August 2006, as a result of the implementation of the "National Framework Agreement for the Modernisation of Pay Structures", this was regraded to a Lectureship, although in September 2008 I gained promotion to Senior Lecturer.
I teach mainly on the Chemical Sciences Scheme within the Centre for Chemical Sciences, which includes a significant proportion of the organic chemistry in Stage 1 and 2 (theory and practical). In addition, I am module leader for and teach much of a Stage 1 information technology module (including amongst other topics, instruction on software packages, molecular modelling, web resources and web page construction) and deliver a portion of the Stage 3 contemporary chemical issues module (currently I discuss chemoinformatics), both for the Chemical Sciences Scheme. I am also the module leader for the Stage 3 chemistry research project module. In January 2004 I became the Manager for the Chemical Sciences Scheme, a post that I held until September 2007, and I am the Stage 3 Tutor for the Chemical Sciences Scheme.
On the Environmental Science Scheme, I teach part of a Stage 2 chemical and biological oceanography module (I discuss the flux of and processes affecting natural organic matter in the marine environment) and run tutorials on the Stage 2 research skills and personal development module. I am the module leader for the Stage 3 environmental science research project module. For the M.Sc. in Applied Marine Sciences I discuss aspects of the flux, budget and fate of anthropogenic persistent organic pollutants (POPs), e.g. polychlorinated biphenyls (PCBs) and polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDDs and PCDFs).
Refereed publications since 1996 (reverse chronological):
Scarlett, A.G., Clough, R., West, C.E., Lewis, C.A., Booth, A.M. and Rowland, S.J. (2011) Alkylnaphthalenes: Priority pollutants or minor contributors to the poor health of marine mussels? Environmental Science & Technology45, 6160-6166. [doi: 10.1021/es201234a].
Booth, A.M., Scarlett, A.G., Lewis, C.A., Belt, S.T. and Rowland, S.J. (2008) Unresolved complex mixtures (UCMs) of aromatic hydrocarbons: Branched alkyl indanes and branched alkyl tetralins are present in UCMs and accumulated by and toxic to, the mussel Mytilus edulis. Environmental Science & Technology42, 8122-8126. [doi: 10.1021/es801601x].
Smith, B.E., Lewis, C.A., Belt, S.T., Whitby, C. and Rowland, S.J. (2008) Effects of alkyl chain branching on the biotransformation of naphthenic acids. Environmental Science & Technology42, 9323-9328. [doi: 10.1021/es801922p].
Booth, A.M., Aitken, C., Jones, D.M., Lewis, C.A., and Rowland, S.J. (2007) Resistance of toxic alkylcyclohexyltetralins to biodegradation by aerobic bacteria. Organic Geochemistry38, 540-550. [doi: 10.1016/j.orggeochem.2006.12.008].
Booth, A., Sutton, P.A., Lewis, C.A., Lewis, A.C., Scarlett, A., Wing Chau, Widdows, J. and Rowland, S.J. (2007) Unresolved complex mixtures of aromatic hydrocarbons: Thousands of overlooked persistent, bioaccumulative and toxic contaminants in mussels. Environmental Science & Technology41, 457-464. [doi: 10.1021/es0615829].
This publication was featured on the ACS Publications website as one of the Most-Cited Articles published in 2007 and cited through the period ending 31 December 2007. Most-Cited Articles listed are based on data from Thomson Web of Science®.
Smith, B.E., Sutton, P.A., Lewis, C.A., Dunsmore, B., Fowler, G., Krane, J., Lutnaes, B.F., Brandal, Ø., Sjöblom, J. and Rowland, S.J. (2007) Analysis of 'ARN' naphthenic acids by high temperature gas chromatography and high performance liquid chromatography. Journal of Separation Science30, 375-380. [doi: 10.1002/jssc.200600266].
Sutton, P.A., Lewis, C.A. and Rowland S.J. (2005) Isolation of individual hydrocarbons from the unresolved complex hydrocarbon mixture of a biodegraded crude oil using preparative capillary gas chromatography. Organic Geochemistry36, 963-970. [doi: 10.1016/j.orggeochem.2004.11.007].
Massé, G., Belt, S.T., Allard, W.G., Lewis, C.A., Wakeham, S.G. and Rowland, S.J. (2004) Occurrence of novel monocyclic alkenes from diatoms in marine sedimenting particles and sediments. Organic Geochemistry35, 813-822.
Johns, L., Belt, S.T., Lewis, C.A., Rowland, S.J., Massé, G., Robert J.-M. and König W.A. (2000) Configurations of polyunsaturated sesterterpenoids from the diatom, Haslea ostrearia. Phytochemistry53, 607-611.
Rowland, S.J., Belt, S.T., Johns, L., Wraige, E.J., Lewis, C.A., Robert, J.-M. Massé, G., König, W., Frampton, D., Blackburn, S., Revill, A.T. and Volkman, J.K. (1999) Controls on the sedimentary distributions of the highly branched isoprenoid lipids of diatomaceous algae. 19th International Meeting on Organic Geochemistry, Istanbul, Turkey, 6-10 September 1999, Abstracts Part 1, 04B, Tubitak Marmara Research Center, 17-18.
Johns, L., Wraige, E.J., Belt, S.T., Lewis, C.A., Massé, G., Robert, J.-M. and Rowland, S.J. (1999) Identification of a C25 highly branched isoprenoid (HBI) diene in Antarctic sediments, Antarctic sea-ice diatoms and cultured diatoms. Organic Geochemistry30, 1471-1475.
Sutton, P.A., Lewis, C.A., Patell, Y., Seddon, K.R. and Rowland, S.J. (1998) Attempted dissolution of 'insoluble organic matter' from Methanococcus jannaschii and Rostherne Mere (UK) sediment with 1-ethyl-3-methyl imidazolium chloride/aluminium (III) chloride. Ancient Biomolecules2, 195-207.
Heath, D.J., Lewis, C.A. and Rowland, S.J. (1997) The use of high temperature gas chromatography to study the biodegradation of high molecular weight hydrocarbons. Organic Geochemistry26, 769-785.
Lewis, C.A. (1997) Analytical techniques in organic geochemistry. In: Modern Analytical Geochemistry (Edited by Gill, R.), pp. 243-272, Addison Wesley Longman Limited, Harlow, U.K.
Wraige, E.J., Belt, S.T., Lewis, C.A., Cooke, D.A., Robert, J.-M., Massé, G. and Rowland, S.J. (1997) Variations in structures and distributions of C25 highly branched isoprenoid (HBI) alkenes in cultures of the diatom, Haslea ostrearia (Simonsen). Organic Geochemistry27, 497-505.
identification of components within supercomplex organic mixtures
With Professor S.J. Rowland (Director of Studies)
Climate regulators? An investigation of amine cycling in marine systems
Dr Mark Fitzsimons (Director of Studies), Dr C. Anthony Lewis, Dr Steve Archer (Plymouth Marine Laboratory) and Dr Ruth Airs (Plymouth Marine Laboratory)
The quantitative isolation of 'insoluble organic matter' (IOM) from sediments and bacteria, and its attempted dissolution using the ionic liquid 1-ethyl-3-methylimidazolium chloride-aluminium (III) chloride [abstract]
With Professor S.J. Rowland (Director of Studies)