Genesis of biomarker hydrocarbons in the environment and their role in assessing an oil pollution source

Kayukova, G. P.; Gordadze, G. N.; Nigmedzyanova, L. Z.; Kiyamova, A. M.; Romanov, A. G.; Zaripova, S. K.; Naumova, R. P.

doi:10.1134/s0965544106010014

Cited by 3 publications

(2 citation statements)

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“…Spilled oils and drifted ashore oils can be analyzed based on the distribution of the hopanes. − The spilled oils have been traditionally analyzed for their composition of alkanes or polycyclic aromatic compounds by gas chromatography−flame ionization detection (GC-FID) spectrometry and gas chromatography−mass spectrometry (GC-MS) . However, the spilled oils are affected by evaporation and chemical decomposition and are then often not distinguishable.…”

Section: Introductionmentioning

confidence: 99%

Discriminatory Analysis of Crude Oils Using Biomarkers

Taki¹,

Asahara²,

Mandai³

et al. 2009

Energy Fuels

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Forty-one types of crude oils were divided into the following six groups, based on the analysis of the homologous series of hopanes of 18R-22,29,30-trisnorneohopane (1), 17R-22,29,30-trisnorhopane (2), 17R-21β(H)-norhopane (3), oleananes (4), and 17R-21β(H)-hopane (5) as biomarkers by GC-MASS, in combination with the inductively coupled plasma-atomic emission spectroscopy (ICP-AES) measurement of nickel and vanadium and X-ray fluorescence spectroscopy (XFS) of sulfur: (a) northern Middle East; (b) eastern Middle East; (c) southern Middle East; (d) Borneo Island, Malaysia, and Vietnam; (e) Sumatra Island, China, Gabon, and Russia; and (f) Mexico crude oils. The relationship between the ratios of 4/5 and 3/5 classified the 41 crude oils into three groups of (d), (e), and (a-c) and (f), which was divided into (a) and (f), (b), and (c), based on the 3/5 and 1/2 ratios. Furthermore, the distribution of vanadium and nickel showed that the Middle East crude oils were subdivided into two groups: the southern parts and the northern parts. The individual Mexican crude oil was differentiated by the determination of the sulfur content of all the crude oils in combination with the vanadium and nickel contents. The crude oils were discriminated based on the hopane analysis in combination with the ICP-AES analysis of nickel and vanadium and XFS of sulfur. This combination method is superior for the identification of crude oils. Two analytical cases of spilled oils and heavy oils provided the discrimination into the individual oils based on the analysis of the hopane series.

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Section: Introductionmentioning

confidence: 99%

Discriminatory Analysis of Crude Oils Using Biomarkers

Taki¹,

Asahara²,

Mandai³

et al. 2009

Energy Fuels

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“…So over time, biomarker analyses have developed as the main techniques used in petroleum exploration to study crude oils, their origin, and maturity. In this context, gas chromatography-mass spectrometry (GC-MS) has been widely used as the method of choice for disclosing biomarkers [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26].…”

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confidence: 99%

Analysis of Kazakhstan Crude Oil Biomarkers by Gas Chromatography in Combination with Mass Spectrometry

Alimzhanova,

Abdykarimov

2023

Separations

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Kazakhstan ranks as the 12th largest oil producer globally and boasts a diverse range of crude oils. This research introduces a method for distinguishing between the different types of crude oils based on biomarker analysis of 28 crude oils from Western and Southern Kazakhstan using gas chromatography-mass spectrometry. Biomarkers serve as valuable tools, especially in forensic investigations of oil spills. These biomarkers effectively retain a significant portion of the original natural product’s carbon structure, providing crucial evidence regarding the origin and identity of the oils under examination. This study identifies a set of biomarkers, including pristine, phytane, n-C17 and n-C18 alkanes, hopanes, bisnorhopanes, iso-copalanes, pregnane, androstane, allopregnane, homopregnane, cholestane, and stigmastane. By examining ratios such as pristane/phytane, pristane/n-C17 alkane, tricyclic/pentacyclic terpanes, and hopane, as well as the distribution of steranes, it was deduced that crude oils from West Kazakhstan exhibited resilience to biodegradation. These findings showed that gas chromatography-mass spectrometry is an effective method for oil biomarkers determination, especially because it provides efficient separation and identification. Additionally, this study delved into the origin conditions and maturity of these oils, contributing to a deeper understanding of their characteristics and analysis that is simple to use and available worldwide.

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GC-MS analysis of cuticular lipids in recent and older scavenger insect puparia. An approach to estimate the postmortem interval (PMI)

et al. 2013

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An analytical method was developed to characterize puparia cuticular lipids (hydrocarbons, waxes) and to compare the molecular distribution patterns in the extracts from either recent or older puparia. Acid-catalyzed transesterification and solvent extraction and purification, followed by combined gas chromatography coupled to mass spectrometry, were optimized for the determination of hydrocarbons and fatty acid ethyl esters from transesterified waxes, extracted from a single species of a fly scavenger (Hydrotaea aenescens Wiedemann, 1830). Comparison between recent (2012) or older (1997) puparia contents has highlighted significant composition differences, in particular, a general decrease of the chain length in the n-alkane distribution pattern and, on the contrary, an increase of the ester chain length. Both extracts contain traces of three hopane hydrocarbon congeners. Preliminary results evidence the change in puparia lipid composition over time, thus potentially providing new indices for estimating postmortem interval.

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Genesis of biomarker hydrocarbons in the environment and their role in assessing an oil pollution source

Cited by 3 publications

References 1 publication

Discriminatory Analysis of Crude Oils Using Biomarkers

Discriminatory Analysis of Crude Oils Using Biomarkers

Analysis of Kazakhstan Crude Oil Biomarkers by Gas Chromatography in Combination with Mass Spectrometry

GC-MS analysis of cuticular lipids in recent and older scavenger insect puparia. An approach to estimate the postmortem interval (PMI)

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