Investigation of various species lichen as biomonitors air pollutants deposition and evaluation element pollution were aimed. Maximum accumulation was 43.9±2.1 mg/kg in X. somloensis. Strontium quite high. Percentages strontium for L.pulmonaria, C.furcata, U.longissima, X.somloensis, F.caperata between 58% 78% indicating the efficient strontium. Lichens also accumulated strategically important ...

Background: Arresting in a certain step of development like two-cell stage could be one of the reasons of infertility. The aim of this study is evaluating the effects of ethanol and strontium on growth and development of two-cell arrested mouse embryos. Materials and Methods: The females were coupled with male following superovulation. Positive vaginal plug mice were killed 48 hours after hCG i...

from Rasmussen, C.E. 1988. The use of strontium as an indicator of anthropogenically altered environmental parameters. "Proceedings of the Sixth International Coral Reef Symposium," Townsville, Australia, 8th-12th August 1988. pp. 325-330. ISBN 0-7316-5607-5: The use of strontium levels precipitated into coral skeletal material has long been recognised as an indicator of oceanic temperature at ...

[1] Reconstructing the dissolved carbon dioxide of surface waters from the dC of organic carbon relies on accurate determination of the growth rate of phytoplankton contributing to sedimentary organic matter. We demonstrate that the Sr/Ca ratio in the coccoliths of Emiliania huxleyi is correlated with the rates of both organic carbon fixation and calcification. An investigation of biomineraliza...

Determination of 90Sr in low-level radioactive wastes (LLW) from reactors is difficult because of the presence of so many other radionuclides in samples of interest. This problem was dealt with by radiochemical separation of strontium followed by yttrium separation and Cerenkov counting of the high-energy B-particle emissions of 9oY in order to quantitate s”Sr. Separation of this important nuch...

An analytical procedure was proposed for the determination of 226 Ra at ultratrace levels in sand filters using sector field inductively coupled plasma mass spectrometry (ICP-MS). Radium was preconcentrated using an impregnated manganese dioxide filter and separated from strontium using Eichrom“Sr-resin.” Following the extraction chromatography, polyatomic ions of Pb and W were eliminated by op...

The thermal and kinetic aspects of solid state decomposition reactions can be complex and posses a large number of parameters to investigate. The determination of the activation energies for the several intermediates in the thermal decomposition is particularly sensitive to the overlap in thermal decomposition traces. To overcome this problem we have undertaken the detailed kinetic analysis of ...

The analysis of water quality, regarding the content of metals, especially heavy and radioactive ones, has been carried out in an indirect way, by testing scale formed in a hot-water heater, using water from the water-supply network of the city of Belgrade - the district of New Belgrade. The determination of the composition and the structure of the scale has resulted in its complete identificat...