| Автор | R F Code |
| Автор | N Gelman |
| Автор | R L Armstrong |
| Автор | R S Hallsworth |
| Автор | C Lemaire |
| Автор | P -T Cheng |
| Дата выпуска | 1990-09-01 |
| dc.description | The <sup>19</sup>F NMR properties of fluoridated rat bone powder samples have been studied in several external magnetic fields. The results show a characteristic field dependence, related to the strength of chemical shift interactions compared to dipole-dipole interactions. While the free induction decay shape is relatively insensitive to the <sup>19</sup>F bone mineral concentration, the spin-lattice relaxation time decreases with increasing <sup>19</sup>F concentration. Multi-exponential spin-lattice relaxation processes indicate that there are at least two chemically inequivalent incorporation sites for fluorine in bone mineral. Evidence for clustering of <sup>19</sup>F fluoride impurities in bone mineral is seen in Hahn echo experiments. Sample preparation and handling methods are shown to affect the values of some of the observed NMR parameters. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Field dependence of <sup>19</sup>F NMR in rat bone powders |
| Тип | paper |
| DOI | 10.1088/0031-9155/35/9/007 |
| Electronic ISSN | 1361-6560 |
| Print ISSN | 0031-9155 |
| Журнал | Physics in Medicine and Biology |
| Том | 35 |
| Первая страница | 1271 |
| Последняя страница | 1286 |
| Аффилиация | R F Code; Dept. of Phys., Toronto Univ., Ont., Canada |
| Аффилиация | N Gelman; Dept. of Phys., Toronto Univ., Ont., Canada |
| Аффилиация | R L Armstrong; Dept. of Phys., Toronto Univ., Ont., Canada |
| Аффилиация | R S Hallsworth; Dept. of Phys., Toronto Univ., Ont., Canada |
| Аффилиация | C Lemaire; Dept. of Phys., Toronto Univ., Ont., Canada |
| Аффилиация | P -T Cheng; Dept. of Phys., Toronto Univ., Ont., Canada |
| Выпуск | 9 |
