Method for enrichment of oxygen 18 with a laser
AssigneeRikagaku Kenkyusho
InventorsTetsuro Majima, Kyoko Sugita, Shigeyoshi Arai
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Abstract
The present invention relates to a method for enrichment of oxygen 18, which comprises the steps of optionally adding a hydrocarbon to a saturated aliphatic ether other than dimethyl ether and/or a saturated cyclic ether as an oxygen 18-containing starting material, irradiating the material(s) with laser light to induce oxygen 18 selective photodecomposition and separating oxygen 18-containing products from the photodecomposed products. Oxygen 18 enriched compounds obtained by the present invention can be used as tracers and the like.
Claims12
A method for enrichment of oxygen 18, which comprises the steps of
- (a) irradiating an oxygen 18-containing saturated aliphatic ether other than dimethyl ether, an oxygen 18-containing saturated cyclic ether, or a mixture thereof with laser light to induce oxygen 18 selective photodecomposition and
- (b) separating oxygen 18-containing products from the photodissociated products.
A method for enrichment of oxygen 18, which comprises the steps of
- (a) irradiating an oxygen 18-containing saturated aliphatic ether other than dimethyl ether, an oxygen 18-containing saturated cyclic ether, or a mixture thereof with laser light to induce oxygen 18 selective photodecomposition,
- (b) separating oxygen 18-containing products from the photodecomposed products, and
- (c) converting the obtained oxygen 18-containing products into ethers and applying the ethers as the starting materials to the process (a).
Dependencies are inferred from the claim text.