oxygen-18

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oxygen-18

[′äk·sə·jən ā′tēn]
(nuclear physics)
Oxygen isotope with atomic weight 18; found 8 parts to 10,000 of oxygen-16 in water, air, and rocks; used in tracer experiments. Also known as heavy oxygen.
References in periodicals archive ?
The present study was focussed on stable carbon 13 and oxygen 18 isotopic analysis based on data from two stratigraphically importantsections.
The analyzer uses laser-based mid-infrared spectroscopy to simultaneously measure carbon 13 isotope and oxygen 18 isotope with a precision of better than 0.
In this case, the researchers detected elevated levels of the isotope oxygen 18 in comparison with the more commonly found oxygen 16.