14314-42-2[18OH2]XLYOFNOQVPJJNP-NJFSPNSNSA-N((18)O)water is a form of water consisting of two hydrogen atoms covalently bonded to an oxygen-18 atom. It is an isotopically modified compound and a water. It contains an oxygen-18 atom.
14314-42-2、14797-71-8CHEBI:33813化学的特性Colourless Liquid
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説明Only 0.2% of the oxygen-18O isotope exists in atmospheric oxygen. The Water-18O is manufactured by enriching the oxygen-18O over 98 atom% and is used to produce the [18F]FDG *1 PET diagnostic reagent for cancer. Water enriched in the oxygen-18 isotope (Water-18O) is widely used in medicine, agrochemistry and biochemistry. Oxygen-18 was first enriched to 99.5% in 1943 using thermal diffusion. To date, the use of electrolysis, chemical isotope exchange, gas diffusion, and rectification of oxygen, nitric oxide, and water has been described to enrich water with oxygen-18. Among them, the method of rectification of water, first demonstrated in 1944, is successfully used now in industry.
使用Water-18O, 97 atom % 18O is used in DNA stable isotope probing (SIP) to investigate microbial growth and death in environmental samples.
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定義ChEBI: ((18)O)water is a form of water consisting of two hydrogen atoms covalently bonded to an oxygen-18 atom. It is a water and an isotopically modified compound. It contains an oxygen-18 atom.