High-speed device for synchronization of natural-drop experiments with a dropping mercury electrode
| Autor: | Michael J. Weaver, C. G. Enke, Paul D. Tyma |
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| Rok vydání: | 1979 |
| Předmět: | |
| Zdroj: | Analytical Chemistry. 51:2300-2302 |
| ISSN: | 1520-6882 0003-2700 |
| DOI: | 10.1021/ac50049a059 |
| Popis: | tribution to less than 270, at which point it is neglected. The use of 24Na, 28A1, 31Si, and S however, the precision achieved is not comparable to that using thermal neutrons and conventional (n,?) activation for AI. Even though analytical data on these four elements can be resolved from among the competing reactions with a sacrifice of precision, Si, Al, and Ti can be more easily measured by other (n,p) or (n,?) reactions. Neither (n,?) nor (n,p) methods are particularly sensitive for Mg determination and nonnuclear techniques are preferred. Epithermal activation via (n,p) reactions provides an alternative, although less sensitive, method for the determination of Fe, Al, Na, Ni, and F. The preferred techniques are probably thermal neutron activation for the first three elements, atomic absorption for Ni, and ion selective electrode for F. Titanium and Si can be measured much more sensitively using the (n,p) reaction than by thermal neutron activation. ACKNOWLEDGMENT We thank the staff of the OWR for assistance with the neutron irradiations. |
| Databáze: | OpenAIRE |
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