Research output per year
Research output per year
Personal profile
Research Biography
Stewart Walker has worked on the design, development and application of advanced analytical techniques to solve problems in the analytical, environmental, industrial, forensic and medical arenas. He has worked or collaborated with Industrial Companies including BP Research in London, BHP, Melbourne, Universities including St Andrews and Glasgow in Scotland, La Trobe, James Cook, Curtin, UWA, UofSA, Adelaide and Flinders Universities in Australia and many international universities and with Government Agencies, including CSIRO, AIMS(Australian Institute of Marine Science), DSTO, Chemistry Centre WA and the CRC-Great Barrier Reef. He is a long-serving committee member and former President of the SA Branch of the Royal Australian Chemical Institute and is currently President of the South Australian Branch of the Australian and New Zealand Forensic Science Society. He is active in consultation and has assisted AFP, SafeworkSA and SA Police on cases and as an 'International Expert' for IAEA/UN Environmental Analysis Projects in Asia.
Research Interests
Design, development and application of advanced analytical techniques (inc spectrometric, electrochemical, chromatographic and mass spectrometric) to solve problems in analytical, environmental, industrial, forensic and medical arenas. Specialisation in combining ICPMS, LA-ICPMS and HR-MC-ICPMS for multi-elemental fingerprinting, GCMS, LCMS for compound and impurity detection and Isotope Ratio Mass Spectrometry and other techniques to identify and provenance materials including glass, paint, paper, ink, wine, food-stuffs, drugs and condoms.
Supervised Students Successes
- Dec 2013 Danielle Butzbach - National Institute of Forensic Science - Highly Commended Paper in Best Paper in a Refereed Journal
- Feb 2013 Danielle Butzbach - Finalist (Top 3) Channel 9 Young Achiever Awards for 2012/2013 Science and Technology
- Nov 2012 Broderick Matthews - National Institute of Forensic Science - Best Published Case Study 2011
- Sep 2008 Emma Partridge - Best Toxicology Paper Australian and New Zealand Forensic Science Society International Symposium
- Nov 2005 Hayley Brown - National Institute of Forensic Science Prize for Best Paper in A Refereed Journal (Ammonium Nitrate)
- Nov 2005 Hayley Brown - National Institute of Forensic Science Prize for Best Paper in A Refereed Journal (Amphetamines)
- Nov 2005 Hazel Rivera - National Institute of Forensic Science - Highly Commended Paper in A Refereed Journal
- Jul 2005 Chad Prior - Bloom-Gutmann Medal - Best Electrochemical Student Presentation RACI Connect
Completed Supervisions
Principal Supervisions:
- Differentiation of GHB by Isotope Ratio Mass Spectrometry and Ion Chromatography (1)
- Electrochemical Analysis of Multiple Metals (1)
- Pyrolysis of Peat (1)
- Steroid Detection by Surface Assisted Laser Desorption Ionisation Mass Spectrometry (1)
- The Stability of Selected Psychiatric Medications During Simulated Post-Mortem Decomposition (1)
- Nanoparticles for detection of cancer
- Use of IRMS and ICPMS and other techniques for Improvised Explosive Material
Education/Academic qualification
Graduate Certificate, Education (Higher Education), Flinders University
3 Mar 2015 → 25 Nov 2016
Award Date: 25 Nov 2017
Graduate Certificate, Graduate Business Qualification (1/3rd of an MBA) , Curtin University
27 Feb 2000 → 12 Dec 2000
Award Date: 2 Feb 2001
PhD, ‘A study of ion/molecule reactions in the gas phase using a Triple Quadrupole Mass Spectrometer and a Quinqua Quadrupole Mass Spectrometer’
30 Sept 1985 → 21 Jan 1989
Award Date: 21 Jan 1989
Bachelor of Science (Honours), University of St Andrews
29 Sept 1979 → 30 Jun 1985
Award Date: 1 Jul 1985
Supervision
- Registered
Research Areas
- Environmental health
Supervisory Interests
- Biogeochemistry
- Stable isotopes
- Australia and New Zealand food regulation
- Food and the environment
- Analytical chemistry
- Analytical chemistry sampling, analysis and interpretation
- Forensic and analytical chemistry
- Chemistry
- Environmental chemistry
Keywords
- QD Chemistry
- environment sustainable development
- forensic
- analytical
- Drug use and abuse
- U Military Science (General)
- Explosives
- Detection and prevention
Fingerprint
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Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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Determining extent and distribution of methamphetamine in cars: Air vs. surface vs. fabrics
Kerry, G. L., Ross, K. E., Walker, G. S. & Wright, J., Mar 2025, In: Forensic Chemistry. 42, 7 p., 100628.Research output: Contribution to journal › Article › peer-review
Open AccessFile26 Downloads (Pure) -
An Investigation into the Prevalence of Methamphetamine Related Enquiries to Local Government Environmental Health Officers
Kuhn, E. J., Ross, K. E., Walker, G. S., Wright, J. & Whiley, H., 8 Apr 2024, In: International Journal of Environmental Research and Public Health. 21, 4, 9 p., 455.Research output: Contribution to journal › Article › peer-review
Open AccessFile29 Downloads (Pure) -
ICPMS and IRMS for Elemental and Isotopic Forensic Inestigations
Walker, G. S., 2024, Applications of Mass Spectrometry for the Provision of Forensic Intelligence: State-of-the-art and Perspectives. Francese, S. & Bleay, S. (eds.). London, UK: RSC Publishing, Vol. 14. p. 70-95 26 p. (NEW DEVELOPMENTS IN MASS SPECTROMETRY; vol. 14).Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
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A Preliminary Environmental Investigation of Inputs Impacting the Water Quality of Coffin Bay
Walker, S., Clanahan, M., Jazayeri, A., Dittmann, S., Canty, A. & Werner, A., Mar 2023, Flinders University. 64 p.Research output: Book/Report › Confidential Report
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Evaluation of commercially available methamphetamine presumptive tests for site contamination
Kuhn, E. J., Walker, G. S., Whiley, H., Wright, J. & Ross, K. E., 2023, In: Toxicology Communications. 7, 1, 7 p., 2238154.Research output: Contribution to journal › Article › peer-review
Open AccessFile2 Citations (Scopus)109 Downloads (Pure)
Prizes
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National Institute for Forensic Science Award Best Chapter in a Book 2017
Castle, J. (Recipient), Walker, S. (Recipient), Lenehan, C. (Recipient), Reith, F. (Recipient), Kirkbride, P. (Recipient) & Butzbach, D. (Recipient), 26 Oct 2017
Prize
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National Institute of Forensic Science Australia New Zealand Best Case Study 2017
Walker, S. (Recipient), Wright, J. (Recipient), Kenneally, M. (Recipient) & Edwards, J. (Recipient), 26 Oct 2017
Prize
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National Institute of Forensic Science Australia New Zealand Best Case Study 2020
Walker, S. (Recipient), Wright, J. (Recipient), Kenneally, M. (Recipient) & Ross, K. (Recipient), 19 Nov 2020
Prize
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National Institute of Forensic Science Australia New Zealand Best Paper in a Refereed Journal 2013 - Highly Commended
Walker, S. (Recipient), Butzbach, D. (Recipient), Stockham, P. (Recipient), Kobus, H. (Recipient), Sims, N. (Recipient), Byard, R. (Recipient) & Lokan, R. (Recipient), 18 Dec 2013
Prize
File
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Journal of Forensic Science Education (Journal)
Walker, S. (Member of editorial board)
Aug 2019 → …Activity: Publication peer-review and editorial work types › Editorial work
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Flinders Living (Organisational unit)
Walker, S. (Member)
2005 → 2015Activity: Membership types › Membership of board