## Abstract A thermodynamic study on the interaction of Jack bean urease, JBU, with Zn^2+^ and Cd^2+^ ions was studied by isothermal titration calorimetry (ITC) at 290, 300 and 310 K in 30 mmol/L Tris buffer solution, pH 7.0. The heats of JBU+Zn^2+^ and JBU+ ^2+^ interactions are reported and analy
A mass-spectrographic study of the isotopes of argon, potassium, rubidium, zinc and cadmium
โ Scribed by Alfred O. Nier
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 396 KB
- Volume
- 30
- Category
- Article
- ISSN
- 1076-5174
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โฆ Synopsis
Abstract
A mass spectrograph is described with which a study of the isotopic constitution of argon, potassium, rubidium, zinc and cadmium has been made. A calculation is carried out which indicates that the radioactivity of potassium and rubidium can best be explained by assuming that it is K^40^ in the case of potassium and Rb^87^ in the case of rubidium which is undergoing decay.
๐ SIMILAR VOLUMES
## Abstract Znโ and Cdโcomplexes of Quercus suber metallothionein (QsMT) were obtained by in vivoโsynthesis, in order to obtain physiologically representative aggregates, and characterized by spectrometric and spectroscopic methods. The secondary structure elements and the coordination environments
## Abstract A new method of general applicability for determining the percentage deuterium labeling in organic compounds is described. It uses the heights of โmetastable peaksโ in the mass spectrum to determine the relative amounts of deuterated and undeuterated species. The method is illustrated b