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Deuterium-depleted water has less deuterium (2 H) than occurs in nature at sea level. [1] Deuterium is a naturally-occurring, stable (non-radioactive) isotope of hydrogen with a nucleus consisting of one proton and one neutron. A nucleus of normal hydrogen (protium, 1 H) consists of one proton only, and no neutron.
Semiheavy water is the result of replacing one of the protium in normal water with deuterium. [1] It exists whenever there is water with light hydrogen (protium, 1 H) and deuterium (D or 2 H) in the mix. This is because hydrogen atoms (1 H and 2 H) are rapidly exchanged between water molecules.
Girdler sulfide process. The Girdler sulfide (GS) process, also known as the Geib–Spevack (GS) process, [1] is an industrial production method for filtering out of natural water the heavy water (deuterium oxide = D 2 O) which is used in particle research, in deuterium NMR spectroscopy, deuterated solvents for proton NMR spectroscopy, in heavy water nuclear reactors (as a coolant and ...
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Thus heavy water as defined by the Gold Book includes semiheavy water (hydrogen-deuterium oxide, HDO) and other mixtures of D 2 O, H 2 O, and HDO in which the proportion of deuterium is greater than usual. For instance, the heavy water used in CANDU reactors is a highly enriched water mixture that is mostly deuterium oxide D
DLW ('tagged' water) is traceable hydrogen (deuterium), and traceable oxygen (18 O). The 18 O leaves the body in two ways: (i) exhaled CO 2, and (ii) water loss in (mostly) urine, sweat, and breath. But the deuterium leaves only in the second way (water loss). From deuterium loss, we know how much of the tagged water left the body as water.
Deuterium-depleted water, water with less heavy water than in natural water. See also. ddw, ISO 639-3 code of the Dawera-Daweloor language of Indonesia
Due to confusion over multiple water standards, the Commission on Isotopic Abundances and Atomic Weights recommended in 1994 that all future isotopic measurements of oxygen-18 (18 O) and deuterium (2 H) be reported relative to VSMOW, on a scale such that the δ 18 O of SLAP is −55.5‰ and the δ 2 H of SLAP is −428‰, relative to VSMOW.
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