Compound-specific isotope analysis. Application to archaelogy, biomedical sciences, biosynthesis, environment, extraterrestrial chemistry, food science, forensic science, humic substances, microbiology, organic geochemistry, soil science and sport

Lichtfouse, Éric

doi:10.1002/1097-0231(20000815)14:15<1337::aid-rcm9>3.0.co;2-b

Cited by 122 publications

(91 citation statements)

References 173 publications

(208 reference statements)

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“…Using 14 C content in fatty acids, we could better discuss the biogeochemical cycle and fates of the terrestrial organic matter in the soil system. Although stable carbon isotopic composition (e.g., Hayes et al, 1990;Huang et al, 1996;Naraoka et al, 1999;Lichtfouse, 2000) and radiocarbon analyses (Pearson et al, 2001;Uchida et al, 2000Uchida et al, , 2001Smittenberg et al, 2006) of lipid class compounds have been reported in sediments, radiocarbon analysis of individual organic molecules has rarely been conducted in soil samples. Lichtfouse et al (1997a, b) determined molecular distribution, 13 C and 14 C of hydrocarbon fractions from modern soil samples, and provided some evidence on their fossil fuel origin.…”

Section: Introductionmentioning

confidence: 99%

Radiocarbon content and stable carbon isotopic ratios of individual fatty acids in subsurface soil: Implication for selective microbial degradation and modification of soil organic matter

et al. 2007

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Section: Introductionmentioning

confidence: 99%

Radiocarbon content and stable carbon isotopic ratios of individual fatty acids in subsurface soil: Implication for selective microbial degradation and modification of soil organic matter

et al. 2007

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“…In recent investigations, we have used compound-specific isotope analysis (CSIA, Hayes et al, 1990, reviewed by Lichtfouse, 2000) and biomarkers in order to study the sources and the formation of soil humic substances (Lichtfouse, 1998, Lichtfouse et al, 1997a,b, Lichtfouse et al, 1998a. More specifically, crop labelling experiments using 13 C-enriched carbon from maize have allowed to calculate and to predict the turnover of individual soil n-alkanes (Lichtfouse, 1995, Lichtfouse, 1997b.…”

Section: Introductionmentioning

confidence: 99%

δ13C of plant-derived n-alkanes in soil particle-size fractions

Cayet

Lichtfouse²

2001

Organic Geochemistry

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International audienceSoil organic carbon can be labelled at natural abundance by the cultivation of C4 plants, e.g. maize, on soils which have been previously cropped with isotopically distinct C3 plants, e.g. wheat. Particle-size fractions from soils cultivated for 23 years either with maize or wheat have been analysed for C and N contents, and for δ 13C values of bulk C and of plant-derived n-alkanes (C29, C31). The amount of maize-derived organic components has been calculated by isotope balance. After 23 years of maize cropping, δ 13C values of n-alkanes from the same soil sample increase with particle size. The results have two implications. First, the input of leaf wax n-alkanes into the soil is occurring preferentially via large particles. Second, in a same soil sample, the C31 n-alkane from the 200–2000 μm particle-size fraction is younger than the C31 n-alkane from the 50–200 and 0–50 μm fractions. In this respect, 13C analysis represents a method of relative dating of individual compounds

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“…Developments in GC-IRMS (Matthews and Hayes 1978;Freeman et al 1990;Lichtfouse 2000) have enabled CSIA techniques to be applied in a wide range of studies of hydrocarbons_ENREF_5_ENREF_6. It has been used to aid source rock and oil correlations (Asif et al 2009), source-apportioned polycyclic aromatic hydrocarbon (PAH) emissions (McRae et al 1996), distinguishing gasoline samples (Smallwood et al 2002), and many others reviewed elsewhere (MeierAugenstein 1999;Philp 2007;Thullner et al 2012;Négrel et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Forensic differentiation of diesel fuels using hydrocarbon isotope fingerprints

Muhammad¹,

Frew²,

Hayman³

2013

Central European Geology

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Compound-specific isotope analysis (CSIA) is fast becoming an important tool to provide chemical evidence in a forensic investigation. Attempts to trace environmental oil spills were successful where isotopic values were particularly distinct. However, difficulties arise when a large dataset is analyzed and the isotopic differences between samples are subtle. Thus, this study intends to demonstrate any linkages between diesel fuels in a large number of datasets where subtlety in the isotopic values is accentuated by the near single-point source of origin. Diesel fuels were obtained from various locations in the South Island of New Zealand. Aliquots of these samples were diluted with n-pentane and subsequently analyzed with gas chromatography-isotope ratio mass spectrometry (GC-IRMS) for carbon and hydrogen isotope values. The data obtained were subjected to principal component analysis (PCA) and hierarchical clustering. A wide range of δ 13 C and δ 2 H values were determined for the ubiquitous alkane compounds (the greatest values being -4.5‰ and -40‰, respectively). Based on the isotopic character of the alkanes it is suggested that diesel fuels from different locations were distinguishable and that the key components in the differentiation are the δ 2 H values of the shorter chain-length alkanes. However, while the stable isotope measurements may provide information to classify a sample at a broad scale, much more detailed information is required on the temporal and spatial variability of diesel compositions. The subtle differences of the stable isotope values within the alkanes of different diesel fuels highlighted the power of CSIA as a means of differentiating petroleum products of different origins, even more so when two or more stable isotopes data are combined. This paper shows that CSIA when used in tandem with multivariate statistical methods can provide suitable tools for source apportionment of hydrocarbons by demonstrating a straightforward approach, thus eliminating lengthy analytical processes.

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Compound-specific isotope analysis. Application to archaelogy, biomedical sciences, biosynthesis, environment, extraterrestrial chemistry, food science, forensic science, humic substances, microbiology, organic geochemistry, soil science and sport

Cited by 122 publications

References 173 publications

Radiocarbon content and stable carbon isotopic ratios of individual fatty acids in subsurface soil: Implication for selective microbial degradation and modification of soil organic matter

Radiocarbon content and stable carbon isotopic ratios of individual fatty acids in subsurface soil: Implication for selective microbial degradation and modification of soil organic matter

δ13C of plant-derived n-alkanes in soil particle-size fractions

Forensic differentiation of diesel fuels using hydrocarbon isotope fingerprints

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