Biomarker signatures of Upper Cretaceous Latrobe Group petroleum source rocks, Gippsland Basin, Australia: Distribution and geological significance of aromatic hydrocarbons

Origin and Geochemical Implications of Hopanoids in Saline Lacustrine Crude Oils from Huanghekou East Sag and Laizhouwan Northeastern Sag, Bohai Bay Basin

“…Numerous studies reported the isomerization and formation processes of hopanes. ,,,,− A common sequence of reactions is conversion of bacteriohopanepolyol to hopene to hopane . Nevertheless, rearranged hopanes and novel series of hopanes might have experienced the more complex transformation process under special conditions. , In this study, there is a dominance of normal hopane distributions.…”

Applying biomarkers as paleoenvironmental indicators to reveal the organic matter enrichment of shale during deep energy exploration: a review

“…The individual biomarkers are commonly identified based on comparison of elution sequences, relative retention times, and mass spectra with the NIST Chemistry WebBook () and those previously reported. 96–98…”

“…The individual biomarkers are commonly identied based on comparison of elution sequences, relative retention times, and mass spectra with the NIST Chemistry WebBook (https:// webbook.nist.gov/chemistry/) and those previously reported. [96][97][98] 4.5 Gas chromatography-mass spectrometry-mass spectrometry (GC-MS-MS) Gas chromatography tandem mass spectrometry (GC/MS/MS) is a more powerful analytical technique. The most common application of GC/MS/MS is for trace quantitative analysis in complex matrices, such as geological samples.…”

Factors controlling the distribution of oil shale layers in the Eocene Fushun Basin, NE China

“…3 g of silica gel and 2 g of alumina were packed into a chromatographic column, and 6 mL of n-hexane was added immediately thereafter; concentrated THCs (1 mL) were then added. The saturated hydrocarbons, aromatic hydrocarbons and resin were washed with n-hexane (30 mL), n-hexane and dichloromethane (1:2) (20 mL) and dichloromethane and ethanol (2:1) (20 mL) (Jiang et al, 2018(Jiang et al, , 2019). An Agilent GC (6890N) instrument coupled to an Agilent mass selective detector (5975B) equipped with a DB-5 MS fused silica capillary column (60 m × 0.25 mm inner diameter, 0.25 μm film thickness) was employed to analyse the saturated hydrocarbons via GC-MS.…”

“…An Agilent GC (6890N) instrument coupled to an Agilent mass selective detector (5975B) equipped with a DB-5 MS fused silica capillary column (60 m × 0.25 mm inner diameter, 0.25 μm film thickness) was employed to analyse the saturated hydrocarbons via GC-MS. The GC-MS method used in this study J o u r n a l P r e -p r o o f was on the same with the method used in Jiang et al (2018Jiang et al ( , 2019. The samples were tested at the Key-Lab for Oil Shale and Paragenetic Minerals of Jilin Province, China.…”