17O and 18O analysis of heavy water
✍ Scribed by John Gray; Alan Guest
- Publisher
- Elsevier Science
- Year
- 1986
- Weight
- 243 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0883-2889
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📜 SIMILAR VOLUMES
The preparation of 1 7 0 -and 180-labelled hypophosphate by oxidation of diphosphite (P2-P4 acid) with iodine-water is described. The 162 MHz NMR 31P(18O) isotope shift of 1 8 0 -l a b e l l e d hypophosphate is 2.42 Hz (0.0149 ppm), the relatively large value compared to l\*O-pyrophosphate, 1.73 Hz
## Abstract 3‐Chloroperbenzoic acid‐^17^O,^18^O was prepared from 3‐chlorobenzoyl chloride and hydrogen peroxide‐^17^O,^18^O (obtained by subjecting water‐^17^O,^18^O. Nitrobenzene‐^15^N was reduced to aniline‐^15^N, which was oxidised by 3‐chloroperbenzoic acid to nitrosobenzene‐^15^N. ^15^N and ^
Possibilities and limits of the routine preparation lines and procedures for D and ~sO isotope analyses of water samples are thoroughly discussed for the specific case when the mass of the sample is limited to single milligrams. It is demonstrated that the classical CO2-equilibration technique also