The Earth's atmosphere – A stable isotope perspective and review

Hoefs, Jochen; Harmon, Russell S.

doi:10.1016/j.apgeochem.2022.105355

Cited by 8 publications

(2 citation statements)

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“…For example, air trapped in glacier ice has been analyzed to determine past concentrations and isotopic composition of the greenhouse gases carbon dioxide, methane, and nitrous oxide. 3 Based on isotope records, past climate transitions can be linked to changes in the source of greenhouse gases and their effects on mean global temperature and sea level. The isotope data also show that emission levels of greenhouse gases since the industrial revolution have been unprecedented in the last 800,000 years, indicating that the present rise in the mean global temperature is caused by human activity.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Long-term environmental isotope records in ice cores, tree rings, and sediments yield climate proxies that represent some of our best tools to infer changing interactions between the atmosphere, hydrosphere, lithosphere, and biosphere. For example, air trapped in glacier ice has been analyzed to determine past concentrations and isotopic composition of the greenhouse gases carbon dioxide, methane, and nitrous oxide . Based on isotope records, past climate transitions can be linked to changes in the source of greenhouse gases and their effects on mean global temperature and sea level.…”

Section: Introductionmentioning

confidence: 99%

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Discovering Nature’s Fingerprints: Isotope Ratio Analysis on Bioanalytical Mass Spectrometers

Neubauer

Kantnerová

Lamothe

et al. 2023

J. Am. Soc. Mass Spectrom.

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For a generation or more, the mass spectrometry that developed at the frontier of molecular biology was worlds apart from isotope ratio mass spectrometry, a label-free approach done on optimized gas-source magnetic sector instruments. Recent studies show that electrospray-ionization Orbitraps and other mass spectrometers widely used in the life sciences can be fine-tuned for high-precision isotope ratio analysis. Since isotope patterns form everywhere in nature based on well-understood principles, intramolecular isotope measurements allow unique insights into a fascinating range of research topics. This Perspective introduces a wider readership to current topics in stable isotope research with the aim of discussing how soft-ionization mass spectrometry coupled with ultrahigh mass resolution can enable long-envisioned progress. We highlight novel prospects of observing isotopes in intact polar compounds and speculate on future directions of this adventure into the overlapping realms of biology, chemistry, and geology.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%