## Abstract The highβfield ^27^Al NMR spectrum of aqueous tea extract contained two narrow resonances at 9.85 and 16.15 ppm. The spectra of aluminium chelates with a number of model ligands (catechol, pyrogallol, catechin, kojic acid, protocatechuic acid, ascorbic acid and salicylic acid) containin
Aluminium kinetics in the tea plant using 27Al and 19F NMR
β Scribed by Tadahiro Nagata; Masahito Hayatsu; Nobuo Kosuge
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 367 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0031-9422
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(19)F and (27)Al NMR chemical shifts are calculated for the F and Al atoms of the mineral rosenbergite, AlF[F(0.5)(H(2)O)(0.5)](4).H(2)O The structure of rosenbergite consists of infinite chains of F-corner-sharing Al[F(4)(H(2)O)(2)] octahedra and isolated water molecules. An F-centered molecular cl
## Abstract Although Ca^2+^ transport regulation at subcellular organelles is of great interest, only limited methodology has been available for measuring organellar [Ca^2+^] levels. The present study employs the ^19^F NMR resonance frequency of 4FβBAPTA to measure free [Ca^2+^]. In 4FβBAPTA loaded