Ca and Sr Sorption on Ca-illite: Experimental Study and Modelling
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چکیده
منابع مشابه
EXAFS Study of Sr sorption to Illite, Goethite, Chlorite, and Mixed Sediment under Hyperalkaline Conditions.
Strontium is an important contaminant radionuclide at many former nuclear sites. This paper investigates the effect of changing pH and ionic strength on the sorption of Sr to a range of common soil minerals. Specifically it focuses on the sorption of Sr onto illite, chlorite, goethite, and a mixed sediment. The interplay between ionic strength and pH was determined by varying the background ion...
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Huang J, Hove-Madsen L, Tibbits GF. SR Ca refilling upon depletion and SR Ca uptake rates during development in rabbit ventricular myocytes. Am J Physiol Cell Physiol 293: C1906–C1915, 2007. First published October 10, 2007; doi:10.1152/ajpcell.00241.2007.— While it has been reported that a sparse sarcoplasmic reticulum (SR) and a low SR Ca pump density exist at birth, we and others have recent...
متن کاملCenozoic seawater Sr/Ca evolution
[1] Records of seawater chemistry help constrain temporal variations in geochemical processes that impact the global carbon cycle and climate through Earth’s history. Here we reconstruct Cenozoic seawater Sr/Ca (Sr/Casw) using fossil Conus and turritellid gastropod Sr/Ca. Combined with an oxygen isotope paleotemperature record from the same samples, the gastropod record suggests that Sr/Casw wa...
متن کاملEffects of Cytosolic ATP on Ca Sparks and SR Ca Content in Permeabilized Cardiac Myocytes
Confocal imaging was used to study the influence of cytosolic ATP on the properties of spontaneous Ca sparks in permeabilized ventricular myocytes. Cells were perfused with mock intracellular solutions containing fluo 3. Reducing [ATP] to ,0.5 mmol/L decreased the frequency but increased the amplitude of spontaneous Ca sparks. In the presence of 20 mmol/L ATP, the amplitude increased by 48.7610...
متن کاملRegional and interspecific variation in Sr, Ca, and Sr/Ca ratios in avian eggshells from the USA.
To examine regional variation in strontium (Sr), which at high concentrations may reduce eggshell quality, increase egg breakage and reproductive failure, we analyzed Sr, and calcium (Ca) concentrations and Sr/Ca ratios in eggshells from 20 avian species from California, Texas, Idaho, Kansas, and Michigan. In addition, we included data previously reported from Arizona to expand the regional com...
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ژورنال
عنوان ژورنال: Procedia Earth and Planetary Science
سال: 2017
ISSN: 1878-5220
DOI: 10.1016/j.proeps.2016.12.177