In late February, Head of the AEOI Ali-Akbar Salehi said that his country is among the very few enjoying the technology to produce
Oxygen-18, adding that the scientific achievement will bring foreign revenues for Tehran.
Head of the Atomic Energy Organization of Iran (AEOI) Ali Akbar Salehi says Iranian researchers at the Khandab Research Reactor have been able to produce
Oxygen-18 at 97 percent of purity.
This method tracks elimination of a set quantity of ingested water made up of two uncommon isotopes (hydrogen-2 and
oxygen-18) to measure energy expenditure.
De Wit and Furnes analyzed hundreds of rock samples for the concentration of
oxygen-18 isotopes, an indicator of what the temperature was like when the rocks formed.
The rain in hurricanes normally contains very small amounts of the Isotope
oxygen-18 and an abundance of the lighter oxygen-16.
The team also looked at the oxygen in the argonite molecules, counting the ratio of the rare
oxygen-18 isotope to the more prevalent oxygen-16.
Oxygen isotopes usually sort out according to mass: oxygen-17, with just one extra neutron, is incorporated into molecules half as often as
oxygen-18, with two extra neutrons.
The wisp of powder -- barely enough to be visible to the naked eye -- is analysed for
oxygen-18, a slightly heavier form of the usual oxygen-16.
The Asia-Pacific stable isotopes market is dominated by deuterium (D2),
oxygen-18 (O-18), carbon-13 (C-13), and nitrogen-15 (N-15).