On the interference of Kr during carbon isotope analysis of methane using continuous-flow combustion–isotope ratio mass spectrometry [PDF]
Atmospheric Measurement Techniques, 2013 Stable carbon isotope analysis of methane (δ13C of CH4) on atmospheric samples is one key method to constrain the current and past atmospheric CH4 budget.
J. Schmitt +9 more
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COOKING FOR THE LIVING AND THE DEAD: LIPID ANALYSES OF RAUŠI SETTLEMENT AND CEMETERY POTTERY FROM THE 11TH–13TH CENTURY; pp. 45–69 [PDF]
Eesti Arheoloogiaajakiri, 2020 This paper is intended as a contribution to the understanding of Late Iron Age food consumption patterns and dietary preferences along the lower course of the River Daugava.
Alise Gunnarssone +4 more
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Proposal for International Agreement on Ca Notation resulting from discussion at workshops on stable isotope measurement held in Davos (Goldschmidt 2002) and Nice (EGS-AGU-EUG 2003) [PDF]
, 2004 A proposal is made to standardise the reporting of Ca isotope data to the δ44Ca/40Ca notation (or δ44Ca/42Ca) and to adopt NIST SRM 915a as the reference ...
Bock, Barbara +8 more
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Data in Brief, 2022 This dataset is comprised of paired radiocarbon (14C) dates, and carbon (δ13C) and nitrogen (δ15N) stable isotope ratios received for skeletal remains of 18 humans and 6 animals.
Łukasz Pospieszny, Szymon Nowaczyk
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Detection of Epitestosterone Doping by Isotope Ratio Mass Spectrometry [PDF]
Clinical Chemistry, 2002 AbstractBackground: Epitestosterone is prohibited by sport authorities because its administration will lower the urinary testosterone/epitestosterone ratio, a marker of testosterone administration. A definitive method for detecting epitestosterone administration is needed.Methods: We developed a gas chromatography-combustion-isotope ratio mass ...
Rodrigo, Aguilera +2 more
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Isotope determination of sulfur by mass spectrometry in soil samples
Revista Brasileira de Ciência do Solo, 2012 Sulphur plays an essential role in plants and is one of the main nutrients in several metabolic processes. It has four stable isotopes (32S, 33S, 34S, and 36S) with a natural abundance of 95.00, 0.76, 4.22, and 0.014 in atom %, respectively. A method for
Alexssandra Luiza Rodrigues Molina Rossete +3 more
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Frontiers in Chemistry, 2020 Trenbolone is a synthetic anabolic-androgenic steroid, which has been misused for performance enhancement in sports. The detection of trenbolone doping in routine sports drug testing programs is complex as methods utilizing gas chromatography/mass ...
Marlen Putz, Thomas Piper, Mario Thevis
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Beryl Reference Materials for In Situ Oxygen Isotope Determination
Crystals, 2021 The mineral beryl (Be3Al2(SiO3)6) has the most abundant phase with industrial value for extracting a critical metal—beryllium. Due to multi-stage, fluid-induced growth, individual beryl grains may yield complex geochemical records, revealing variations ...
Xiaoxiao Ling +12 more
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Recent developments in isotope-ratio mass spectrometry for geochemistry and cosmochemistry
, 2016 Mass spectrometry is fundamental to measurements of isotope ratios for applications in isotope geochemistry, geochronology, and cosmochemistry. Magnetic-sector mass spectrometers are most common because these provide the best precision in isotope ratio ...
Ireland, Trevor
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Analysis of Hydrogen Isotope Abundance by High Resolution Isotope Ratio Mass Spectrometry
Zhipu XuebaoHigh resolution isotope ratio mass spectrometry (HR-IRMS) is often used to measure the abundance of deuterium to verify the efficiency of isotope isolation of a cryogenic distillation column system.
Chao WU +5 more
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