The transport of strontium cation through a hollow fiber supported dichlorobenzene membrane using 18-C-6 crown ether, nitrate and anion of dinonylnaphtalen sulfonic acid has been studied. A permeation device-single hollow fiber module with on-line radiometric detection of strontium using 85 Sr ...
The quality of substitution is heavily dependent on the type of cation and anion and its chemical nature, as well as the length of the alkyl group on the cation [30]. ILs are unique in that, in addition to their ionic and covalent interactions, there are relatively weak interactions, such...
The Separation of strontium by strongly basic anion exchangers IRA-410 and IRA-900 from simulated waste containing, Sr 2+ , Eu 3+ , Ce 3+ , Pd 2+ , Rh 3+ , Ru 3+ , VO 2 2+ , Fe 3+ , Cr 3+ , Ni 2+ , Al 3+ , Ca 2+ , and Cs + , in K 2 SO 4 /nitrate ...
Strontium and oxygen isotopes of individuals from El Hundido and Valdescusa (north of Spain) sites, corresponding to the Bell Beaker culture, were analysed in order to determine mobility patterns and provenance areas. Strontium and oxygen isotope ratios
In U.S. Pat. No. 5,804,203, there are described topical compositions that contain an irritant ingredient (e.g., organic alcohol, carboxylic acid, keto acid, peroxide, etc.), an anti-irritant divalent strontium cation, and a cosmetic or therapeutic active ingredient. The strontium cation is...
What is the name and formula of the anion in this acid? Write the name of the compound with the formula (NH4)2CO3 and identify the cation and anion. Write the correct formula for each of the following compounds: 1. Tetraphosphorus hexafluo...
It has been shown that potassium, caesium, calcium, barium, yttrium and strontium can be adsorbed on strong base anion exchangers of the Dowex and Amberlite type, which contain the quaternary ammonium group with nitrate as counter-ion, from solutions of nitric acid in alcohol. Adsorption strength...
Strontium, yttrium and other cations bind to the cation exchanger and are eluted from the column by means of nitric acid. Separation of yttrium and strontium from other cations is carried out on columns filled with strong base anion exchangers in nitrate form with alcoholic solutions of nitric ...
Radiostrontium is purified by the nitrate method and counted in a low level beta proportional counter. Fe is purified by extraction and cation exchange and 55 Fe is counted by X-ray spectrometry with a Si(Li) detector. The sample preparation and the application of the procedure to large ...
strontium nitrate (Sr(NO3)2·6H2O), tetrabutyl titanate ((CH3(CH2)3O)4Ti), citric acid (C6H8O7), ammonium hydroxide (NH4OH) (30%), ferric nitrate ((Fe(NO3)3·9H2O), hydrogen peroxide (H2O2), Martius yellow (C10H6N2O5), p-nitrophenol (C6H5NO3) and pendimethalin (C13H19N3O4),...