Binding phosphate at participation of alginate/FeCl3 capsules was studied with laboratory experiments. The hydrogel microcapsules were obtained with the dropping-in method, by gelation of sodium alginate water solution by iron (III) chloride solution. Phosphate adsorption characteristics were studied in a static batch system with respect to changes in contact time, initial phosphates concentrat...

Comparative, experimental studies on sediment cores from freshwater and brackishmarine conditions reveal major differences in the benthic exchange of phosphate across the sediment-water interface when shifting from anoxic to oxic conditions. The flux of phosphate to the sediment during this shift was found to be mediated mainly by scavenging from newly formed colloidal ferric oxohydroxide. The ...

Subantarctic Southern Ocean surface waters in the austral summer and autumn are characterized byhigh concentrations of nitrate and phosphate but low concentrations of dissolved iron (Fe,-0.05 nM) and silicic acid (Si, <1 gM). During the Subantarctic Zone AU9706 cruise in March 1998 we investigated the relative importance of Fe and Si in controlling phytoplankton growth and species composition a...

Introduction Mammalian ferritin is an intracellular iron storage protein assembled from 24 subunits forming a spherical shell of an outer diameter of ~13nm and an inner diameter of ~8nm. Its central cavity has a capacity for up to 4500 atoms of ferric iron. The iron loading by ferritin in vitro has been shown to be dependent upon the presence of a Good’s buffer and fails in the presence of phos...

In this work, a correlation study of monoclonal antibody-based enzyme-linked immunosorbent assays (ELISAs) and a liquid chromatography–electrospray mass spectrometric (HPLC/ESI/MS/MS) method for the determination of N-methylcarbamate insecticides carbofuran, carbaryl and methiocarb in fruit baby food is presented. The comparison of performance characteristics of the two methods was carried out ...

ron phosphate coatings have found a wide range of use in the metalI finishing industry as a convenient method for achieving reasonably high levels of corrosion resistance. Flexibility of processing parameters and ease of use are probably the biggest reasons that iron phosphating enjoys its continued popularity. The corrosion resistance of iron phosphate coatings can be dramatically improved by ...

Background: Iron-based phosphate binders are widely used in hemodialysis, to avoid the increased mortality associated with high serum phosphate in dialysis patients. However, comparative studies on the effects of phosphate binders are currently limited. In the present study, a comparative analysis of ferric citrate (FC), sucroferric oxyhydroxide (SF), and lanthanum carbonate (LC) was performed ...

Background: To evaluate and compare the microhardness of deciduous teeth treated with nano-hydroxyapatite and calcium sucrose phosphate after iron drop exposure. Material and Methods: Twenty healthy anterior deciduous teeth were collected and stored in 0.9% saline solution at room temperature. All the teeth were immersed in artificial saliva in an incubator shaker at 37° for an hour and then su...