The proton dynamics in phenylephrine hydrochloride, isoprenaline hydrochloride and norephedrine hydrochloride have been monitored by measuring the temperature dependence of the 'H spin-lattice relaxation times. The results are interpreted as due to C,-hindered reorientation of the NH, and CH, groups
1H NMR studies: dynamics of water in gelatin
✍ Scribed by Amidou Traoré; Loïc Foucat; Jean-Pierre Renou
- Book ID
- 105946881
- Publisher
- Springer
- Year
- 2000
- Tongue
- English
- Weight
- 121 KB
- Volume
- 29
- Category
- Article
- ISSN
- 1432-1017
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
~H NMR measurements on spin-lattice relaxation time (Tz) and spinspin relaxation time (Te) were carried out on hydro-swollen crosslinked poly(methacrylic acid) (PMAA) gel to elucidate molecular motion of water molecules contained in the gel as a function of the degree of crosslinking. From these exp
A combination of 1 H and 23 Na NMR is used to probe the dynamic state of water in gelatine gels as the water content is lowered from 70% to dryness. A sharp increase in the proton and sodium transverse relaxation rates is observed as the water content falls from 20 to 15% while the proton longitudin