However, about 1 % of the carbon in the Earth’s biosphere has 6 protons and 7 neutrons (13C) forming the heavy stable isotope of this important element. Stable isotopes do not decay into other ...

Shark teeth from museum jaws can now reveal what sharks ate decades ago. New research shows preservation chemicals don’t ...

Stable isotopes have helped uncover migratory routes, trophic levels, and the geographic origin of migratory animals. They can be used on land as well as in the ocean and have revolutionized how ...

Stable isotope analysis of elements such as carbon, nitrogen and sulphur is used in ecology to trace the flow of nutrients through food webs and assess trophic levels.

Stable isotopes are safe, non-radioactive forms of common elements such as carbon, nitrogen and hydrogen that occur naturally in small amounts in the foods and water we consume every day. Because they ...

This measurement provides carbon, oxygen and “clumped” isotope ratios for ... coupled with continuous flow stable isotope analysis. This “workhouse” mass spectrometer can measure stable isotopes of ...

The focus was on measuring stable carbon isotopes in the enamel as a way to uncover the plant-based part of an extant or extinct animal's diet. This approach reveals whether a species relied on ...

Stable carbon isotope signatures of copepods in the +16 mg C L−1 treatment were significantly different from the control and showed leachate carbon supported between 29.3% and 55.8% of copepod biomass ...

The carbon-14 isotope imports had been tricky for China ... CNNC says that the heavy water technology allows more stable operations at high power for a longer time than other kinds of reactors.

Naturally-occurring stable isotopes of water and other substances are used to trace the origin, history, sources, sinks and interactions in water, carbon and nitrogen cycles. Stable isotopes can also ...