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Assay of the Deuterium Enrichment of Water via Acetylene

✍ Scribed by Previs, Stephen F.; Hazey, Jeffrey W.; Diraison, Frédérique; Beylot, Michel; David, France; Brunengraber, Henri

Book ID
101221838
Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
353 KB
Volume
31
Category
Article
ISSN
1076-5174

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✦ Synopsis

A technique is presented for measuring the 'H enrichment of water in biological samples when this enrichment is greater than 0.2%. The sample is reacted with calcium carbide to form acetylene gas, which is determined by gas chromatography electron impact ionization mass spectrometry. Ion-molecule reactions, resulting in proton abstraction, are minimized by lowering the electron ionization energy from the usual 70 eV to 45 eV. This technique is much more rapid and economical than the classical isotope ratio mass spectrometric assay of the enrichment of hydrogen gas derived from reduction of water.

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The synthesis of deuterium enriched (+)-
The synthesis of deuterium enriched (+)-propoxyphene
✍ Richard N. Booher 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 French ⚖ 178 KB

+)-Propoxyphene, b e n ~y 1 -d ~ and (+)-propoxyphene, N,Ndimethyl-d6 were prepared by literature methods for use to study the metabolism of deuterium enriched (+)-propoxyphene.