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Sur l'équation séculaire du moyen mouvement de la Lune. Par Mr. Jean Plana


Publisher
John Wiley and Sons
Year
1856
Tongue
English
Weight
255 KB
Volume
44
Category
Article
ISSN
0004-6337

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✍ Ph. Grandjean; P. Lerch; R. Monnier 📂 Article 📅 1960 🏛 John Wiley and Sons 🌐 German ⚖ 309 KB 👁 1 views

## Abstract Two radiochemical methods for the quantitative determination of tantalum and niobium, with the aid of ^182^Ta and ^95^Nb, are described. If only one of these radio‐isotopes is present, it can be determined by counting the gamma radiation emitted in a well‐cristal scintillator. The simul