Simultaneous evaluation of the enantiomeric and carbon isotopic ratios of Cannabis sativa L. essential oils by multidimensional gas chromatography
Sign Up to like & getrecommendations! Published in 2022 at "Analytical and Bioanalytical Chemistry"
DOI: 10.1007/s00216-022-04035-1
Abstract: Recent times have witnessed an upsurge of interest in hemp and hemp-derived products, as driven by the scientific findings specific to the pharmacological properties of Cannabis sativa L. and its constituents. There has been evidence… read more here.
Keywords: isotopic ratios; multidimensional gas; gas chromatography; cannabis essential ... See more keywords
Development of non-destructive isotopic analysis methods using muon beams and their application to the analysis of lead
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Radioanalytical and Nuclear Chemistry"
DOI: 10.1007/s10967-019-06506-9
Abstract: Elemental isotopic ratios are measured in various research fields and provide useful information regarding age, origin, geological and biological activities, ancient climate, etc. Here, we report a new isotopic analysis method without sample destruction using… read more here.
Keywords: isotopic analysis; analysis; using muon; isotopic ... See more keywords
Resolving the conundrum in origin of the Manipur Ophiolite Complex, Indo-Myanmar range: Constraints from Nd isotopic ratios and elemental concentrations in serpentinized peridotite
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Geology"
DOI: 10.1016/j.chemgeo.2017.04.021
Abstract: Abstract Major, trace and rare earth element (REE) abundances along with Nd isotopic ratios are measured in serpentinized peridotite samples from the Manipur Ophiolite Complex (MOC), Indo-Myanmar range (IMR). An attempt is made to resolve… read more here.
Keywords: serpentinized peridotite; range; indo myanmar; isotopic ratios ... See more keywords
Isotopic ratios of Saturn's rings and satellites: Implications for the origin of water and Phoebe
Sign Up to like & getrecommendations! Published in 2019 at "Icarus"
DOI: 10.1016/j.icarus.2018.11.029
Abstract: Abstract Isotopic ratios have long been used to learn about physical processes acting over a wide range of geological environments, and in constraining the origin and/or evolution of planetary bodies. We report the spectroscopic detection… read more here.
Keywords: phoebe; system; rings satellites; isotopic ratios ... See more keywords
The use of Nafion membranes to measure 2H/1H and 18O/16O isotopic ratios in water
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Membrane Science"
DOI: 10.1016/j.memsci.2018.11.003
Abstract: Abstract The isotopic composition of water (2H/1H and 18O/16O) has been widely used in hydrology, ecology, paleoclimatology and forensic science. However, sampling frequency limits many such studies and there is now a clear need for… read more here.
Keywords: isotopic ratios; water; 18o 16o; 16o isotopic ... See more keywords
An isobaric spike method for absolute isotopic ratio determination by MC-ICP-MS.
Sign Up to like & getrecommendations! Published in 2020 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.9b04160
Abstract: Absolute isotopic ratios are required for isobaric interference corrections, spike calibrations, and isotopic analysis by external normalization methods. However, high-precision natural isotopic abundance data are lacking for many elements, particularly those with less than four… read more here.
Keywords: absolute isotopic; spike method; method absolute; isotopic ... See more keywords
Anthropogenic Pb contribution in soils of Southeast China estimated by Pb isotopic ratios
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-79203-3
Abstract: Isotopic ratios were used to identify the source of Lead (Pb) contamination in rural soils from Southeast China. Enrichment of Pb in surface soils was detected from three sampling locations, with the 206Pb/207Pb ratio indicating… read more here.
Keywords: anthropogenic contribution; contribution soils; southeast china; soils southeast ... See more keywords
Determination of the Galaxy age by the method of uranium–thorium–plutonium isotopic ratios
Sign Up to like & getrecommendations! Published in 2017 at "Physics of Atomic Nuclei"
DOI: 10.1134/s1063778817040202
Abstract: The dependence of the Galaxy age (ТG), as determined by the method of uranium–thorium isotopic ratios, on the parameters of the nucleosynthesis model is studied within the theory of galactic nucleosynthesis. It is shown that… read more here.
Keywords: method uranium; uranium thorium; age; galaxy age ... See more keywords
Production and characterization of 60Fe standards for accelerator mass spectrometry
Sign Up to like & getrecommendations! Published in 2019 at "PLoS ONE"
DOI: 10.1371/journal.pone.0219039
Abstract: Accelerator Mass Spectrometry (AMS) is one of the most sensitive analysis techniques to measure long-lived radionuclides, reaching detection limits for isotopic ratios down to 10−15–10−16 in special cases. Its application portfolio covers nearly every field… read more here.
Keywords: 60fe standards; mass spectrometry; mass; isotopic ratios ... See more keywords
Authentication and Geographical Characterisation of Italian Grape Musts through Glucose and Fructose Carbon Isotopic Ratios Determined by LC-IRMS
Sign Up to like & getrecommendations! Published in 2023 at "Molecules"
DOI: 10.3390/molecules28031411
Abstract: The authenticity of grape musts is normally checked through a time-consuming stable isotopic analysis of carbon (δ13C) after fermentation and distillation by following the official OIV MA AS-312-06 method. In this study, the alternative use… read more here.
Keywords: grape; carbon; authentication geographical; isotopic ratios ... See more keywords