Triple oxygen isotopes of cherts through time
Sign Up to like & getrecommendations! Published in 2020 at "Chemical Geology"
DOI: 10.1016/j.chemgeo.2020.119789
Abstract: Abstract It has long been recognized that the stable oxygen isotope 18O/16O ratios of chemical sediments show a systematic decrease with increasing age. This continuous, 3.8 Ga long secular trend has been attributed to 80 °C hot… read more here.
Keywords: 18o 16o; oxygen isotope; triple oxygen;
High-precision analysis of 182W/184W and 183W/184W by negative thermal ionization mass spectrometry: Per-integration oxide corrections using measured 18O/16O.
Sign Up to like & getrecommendations! Published in 2017 at "International journal of mass spectrometry"
DOI: 10.1016/j.ijms.2017.01.002
Abstract: Here we describe a new analytical technique for the high-precision measurement of 182W/184W and 183W/184W using negative thermal ionization mass spectrometry (N-TIMS). We improve on the recently reported method of Trinquier et al. (2016), which… read more here.
Keywords: 18o 16o; mass; 183w 184w; 182w 184w ... 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
Analysis of 18O/16O Isotope Ratios in Organic Matter by Laser Ablation IRMS
Sign Up to like & getrecommendations! Published in 2025 at "Analytical Chemistry"
DOI: 10.1021/acs.analchem.4c06896
Abstract: In recent years, the application of laser ablation isotope ratio mass spectrometry has revolutionized the field of carbon isotope analysis, enabling routine analyses at high spatial resolution (30–40 μm). Until now, an equivalent analytical method… read more here.
Keywords: laser; isotope ratio; 18o 16o; laser ablation ... See more keywords
Analysis of the Stable Isotope Ratios (18O/16O, 17O/16O and D/H) in Glacier Water by Laser Spectrometry.
Sign Up to like & getrecommendations! Published in 2020 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.9b05679
Abstract: A compact isotope ratio sensor based on laser absorption spectroscopy at 2.7 μm was developed for high precision and simultaneous measurements of the D/H, 18O/16O and 17O/16O isotope ratios in glacier water. Measurements of the… read more here.
Keywords: isotope; 18o 16o; 16o 17o; glacier water ... See more keywords
Factors of 18O/16O fractionation in corundum estimated from the calculation of isotopic shifts on vibration frequencies
Sign Up to like & getrecommendations! Published in 2017 at "Geochemistry International"
DOI: 10.1134/s0016702917060064
Abstract: The β-factors of corundum were estimated on the basis of DFT calculations of vibrational frequency changes due to 16O–18O isotope substitution in a harmonic approximation using an all-electron Gaussian-type basis set and the B3LYP hybrid… read more here.
Keywords: 18o 16o; factors 18o; estimated calculation; 16o fractionation ... See more keywords