We present a lifetime measurements of the 6s level of rubidium. We use a time-correlated singlephoton counting technique on two different samples of rubidium atoms. A vapor cell with variable rubidium density and a sample of atoms confined and cooled in a magneto-optical trap. The 5P1/2 level serves as the resonant intermediate step for the two step excitation to the 6s level. We detect the dec...

We present a lifetime measurement of the 6s level of rubidium. We use a time-correlated single-photon counting technique on two different samples of rubidium atoms, a vapor cell with variable rubidium density, and a sample of atoms confined and cooled in a magneto-optical trap. The 5P1/2 level serves as the resonant intermediate step for the two-step excitation to the 6s level. We detect the de...

A high-throughput screening (HTS) assay was developed for the Na(+),K(+)-ATPase channel in order to study rubidium uptake as a measure of the functional activity and modulation of this exchanger. The assay uses elemental rubidium as a tracer for K(+) ions. Three cell lines were used to study the exchanger, and the assay was performed in a 96-well microtiter plate format. Rb(+) uptake was carrie...

Leakage rates were determined from leaf cells loaded with rubidium and [(3)H]leucine. There was a differential response between leucine and rubidium leakage depending upon the species used. The rate of leucine leakage shows a small decline below 5 C for two altitudinal variants of Lycopersicon hirsutum Humb. and Bonpl., whereas Lycopersicon esculentum L. showed a marked increase below 5 C. Rubi...

The steady state kinetics of sodium and potassium ion transport adenosine triphosphatase (EC 3.6-l. 3) suggests an activating action of adenosine triphosphate in addition to its action as a phosphate donor. This action might be an acceleration of dissociation of Kf or its congeners from the enzyme. To test this possibility transient kinetics of the phosphoenzyme was investigated. In membranes f...

The title compounds were prepared by sintering stoichiometric mixtures of the binary deuterides in an autoclave under 65 bar pressure at 625 K. Neutron powder diffraction reveals a b-K SO type structure for Cs MgD (space group Pnma, a58.5988(4), b56.6234(3), 2 4 2 4 ˚ ˚ c511.5988(5) A) and a Cs CoCl type structure for Cs MgD (space group I4/mcm, a58.4022(2), c512.6951(4) A). In both deuterides ...

The half-life of 87Rb was measured by a liquid scintillation method according to the efficiency tracing method. The measuring sample of rubidium chloride was dissolved in a scintillation cocktail of Insta-gel, and the rubidium was determined by gravimetry as tetraphenylborate. The result was (5.56 +/- 0.025) x 10(10) years.

This study discussed production, demand, and future prospects of rubidium, which is an alkali group metal that highly reactive to various media requires carefulness in handling, but no significant environmental hazard rubidium has been reported yet. Rubidium used fields such as optoelectronic equipment, biomedical, chemical industries. Because difficulty production well limited the transaction ...

Spectroscopy of alkali-buffer gas mixtures at high pressures from single-digit to several 100 bars in the regime substantial collisional broadening is relevant a wide range fields, ranging redistribution cooling laboratory astrophysics. Here we report on spectroscopic measurements dense rubidium-noble recorded pressure cell equipped with soldered sapphire optical viewports, which allows for con...