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  • Journal article
    Sephton MA, 2001,

    Life's sweet beginnings?

    , Nature, Vol: 414, Pages: 857-858, ISSN: 0028-0836
  • Journal article
    Sephton MA, Gilmour I, 2001,

    Compound-specific isotope analysis of the organic constituents in carbonaceous chondrites

    , MASS SPECTROMETRY REVIEWS, Vol: 20, Pages: 111-120, ISSN: 0277-7037
  • Journal article
    Sephton MA, Gilmour I, 2001,

    Pyrolysis-gas chromatography-isotope ratio mass spectrometry of macromolecular material in meteorites

    , PLANETARY AND SPACE SCIENCE, Vol: 49, Pages: 465-471, ISSN: 0032-0633
  • Journal article
    Sephton MA, Pillinger CT, Gilmour I, 2001,

    Normal alkanes in meteorites: molecular delta C-13 values indicate an origin by terrestrial contamination

    , PRECAMBRIAN RESEARCH, Vol: 106, Pages: 47-58, ISSN: 0301-9268
  • Journal article
    Jones DM, Watson JS, Meredith W, Chen M, Bennett Bet al., 2001,

    Determination of naphthenic acids in crude oils using nonaqueous ion exchange solid-phase

    , Analytical Chemistry, Vol: 73, Pages: 703-707, ISSN: 0003-2700

    A method is presented for the routine, rapid, and quantitative analysis of aliphatic and naphthenic acids in crude oils, based on their isolation using nonaqueous ion exchange solid-phase extraction cartridges. The isolated acid fractions are methylated and analyzed by gas chromatography and gas chromatography/mass spectrometry. The method is effective on both light and heavy oils and is capable of providing mechanistic information of geochemical significance on the origin of the acids in the oils. Analysis of oils that were solvent extracted from laboratory and field mesocosm marine sediment oil degradation studies indicate that this new method of analyzing the products of hydrocarbon biodegradation may be a useful tool for monitoring the progress of bioremediation of oil spills in the environment.

  • Journal article
    Sephton MA, Pillinger CT, Gilmour I, 2001,

    Supercritical fluid extraction of the non-polar organic compounds in meteorites

    , PLANETARY AND SPACE SCIENCE, Vol: 49, Pages: 101-106, ISSN: 0032-0633
  • Journal article
    Sephton MA, Gilmour I, 2000,

    Aromatic moieties in meteorites: Relics of interstellar grain processes?

    , ASTROPHYSICAL JOURNAL, Vol: 540, Pages: 588-591, ISSN: 0004-637X
  • Journal article
    Sephton MA, Pillinger CT, Gilmour I, 2000,

    Aromatic moieties in meteoritic macromolecular materials: Analyses by hydrous pyrolysis and delta(13)C of individual compounds

    , GEOCHIMICA ET COSMOCHIMICA ACTA, Vol: 64, Pages: 321-328, ISSN: 0016-7037
  • Conference paper
    Sephton M, Gilmour I, 2000,

    Macromolecular organic materials in carbonaceous chondrites: A review of their sources and their role in the origin of life on the early Earth

    , 1st Workshop of the European-Science-Foundation Scientific Program, Publisher: SPRINGER-VERLAG BERLIN, Pages: 27-49, ISSN: 0930-0317
  • Conference paper
    Sephton MA, Pillinger CT, Gilmour I, 2000,

    Supercritical fluid extraction of the organic compounds in the Cold Bokkeveld meteorite

    , Lorraine, 7th Meeting on Supercritical Fluids: Particle Design - Materials and Natural Products Processing, Antibes, France, December 6-8, Publisher: International Society for the Advancement of Supercritical Fluids, Pages: 839-844
  • Journal article
    Sephton MA, Looy CV, Veefkind RJ, Visscher H, Brinkhuis H, de Leeuw JWet al., 1999,

    Cyclic diaryl ethers in a Late Permian sediment

    , ORGANIC GEOCHEMISTRY, Vol: 30, Pages: 267-273, ISSN: 0146-6380
  • Journal article
    Sephton MA, Pillinger CT, Gilmour I, 1999,

    Small-scale hydrous pyrolysis of macromolecular material in meteorites

    , PLANETARY AND SPACE SCIENCE, Vol: 47, Pages: 181-187, ISSN: 0032-0633
  • Conference paper
    Sephton MA, Pillinger CT, Gilmour I, 1999,

    Investigating the constitution of macromolecular material in meteorites using hydrous pyrolysis

    , Illinois, Preprints, Division of Fuel Chemistry, 217th ACS National Meeting: Role of Water in Chemical Reactions, Anaheim, USA, 1999, Publisher: American Chemical Society, Pages: 368-372, ISSN: 0569-3772
  • Book chapter
    Watson JS, Jones DM, Swannell RPJ, 1999,

    Formation of carboxylic acids during biodegradation of crude oil

    , In situ bioremediation of petroleum hydrocarbon and other organic compounds, Editors: Alleman, Leeson, Publisher: Battelle Pr, Pages: 251-255, ISBN: 9781574770766
  • Journal article
    Sephton MA, Pillinger CT, Gilmour I, 1998,

    delta(13)C of free and macromolecular aromatic structures in the Murchison meteorite

    , GEOCHIMICA ET COSMOCHIMICA ACTA, Vol: 62, Pages: 1821-1828, ISSN: 0016-7037
  • Journal article
    Montgomery W, Schofield E, Sephton MA, Watson JSet al.,

    The Preservation of English Oak in Marine Environments

    <jats:p>&lt;p&gt;This study compares the chemical integrity of English Oak (Quercus robur) samples with an age range of four centuries by analysing the lignin degradation.The samples were collected from four historic British vessels and thusrepresent samples of diverse ages which have nonetheless experienced similar non-arborealenvironments. We conclude that the Mary Rose, the oldest vessel studied and therecipient of the most intensive conservation efforts, has been well-preserved throughtreatment with PEG, and we present a baseline for assessing whether a ship hasbeen biologically degraded.&lt;/p&gt;&lt;p&gt;&lt;br&gt;&lt;/p&gt;&lt;p&gt;The work combines quantitative analytic chemistry techniques (e.g., THM-GC-MS) with the conservation of large historic artifacts.&lt;/p&gt;</jats:p>

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