A chelating resin, cross-linked chitosan modified with the glycine moiety (glycine-type chitosan resin), was developed for the collection and concentration of bismuth in aquatic samples for ICP-MS measurements. The adsorption behavior of bismuth and 55 elements on glycine-type chitosan resin was systematically examined by passing a sample solution containing 56 elements through a mini-column pa...

A poly[styrene-co-(divinylbenzene)] resin (XAD-4) functionalized with 1-hydrazinophthalazine ligand has been prepared and its analytical properties investigated. The pH dependence of sorption of metal ion on the resin has been determined for Cu(II), Ni(II), Co(II), Zn(II), Cd(II), Pb(II), Fe(III) and Cr(III). Trace amounts of these metal ions were quantitatively retained on the resin and recove...

Ion exchange has a great potential to remove heavy metals from industrial wastewaters or heavy metal-containing sludge. In order to design and operate heavy metal removal processes, the equilibrium relationship between ions and resin must be known a prior. A series of ion-exchange equilibrium tests of Cu/H, Zn/H, and Cd/H systems using Amberlite IR-120 were performed. The equilibrium data were ...

A detailed comparison of intracellular pH (pHi) regulatory mechanisms was made between fresh (FBCE) and cultured (CBCE) bovine corneal endothelium to: (1) identify the ion transport mechanisms that could directly or indirectly affect transendothelial HCO3~ transport; and (2) determine if cultured cells could serve as a model for studying transendothelial bicarbonate transport. We used the pH-se...

The Jaff#{233} reaction is commonly used to determine the concentration of creatinine in urine and serum by measuring the color produced when picric acid and sodium hydroxide solutions are combined with urine or protein-free filtrate from serum. As is well known, substances other than creatinine react to give positive error, the relative amount of interference usually being much greater in seru...

a chelating resin is prepared by condensation polymerization of aniline with formaldehyde andcharacterized by ft-ir, elemental analysis and studied for the preconcentration and determination of traceplatinum ion from environmental water sample using inductively coupled plasma-atomic emission spectroscopy(icp-aes). the optimum ph value for sorption of the metal ions was 5. the maximum adsorption...

The adsorption behavior of gold from copper–tartrate–thiosulfate solutions with ion-exchange resins was studied in this paper. Experimental parameters include resin dosage, pH, temperature, copper, tartrate, and thiosulfate concentration. A moderate increase tartrate concentration is beneficial for adsorption, but an excessive or higher temperature depresses the process. Increasing copper conce...

Resin-supported [18F]fluoride ion has been prepared and applied to a rapid, convenient synthesis of [18F]FDG. "No-carrier-added" [18F]fluoride ion is collected on a quaternary 4-(N,N-dialkylamino)-pyridinium functionalized polystyrene anion exchange resin directly from a [18O]water target, dried by rinsing with acetonitrile, and then reacted with 1,3,4,6-tetra-O-acetyl-2-O-trifluoromethanesulfo...

In the course of an investigation of the chemical phosphorylation of ribonucleasel (cf. (l)), it became necessary to develop a chromatographic procedure for the fractionation of the phosphorylated protein. The method of Hirs et al. (2), employing the weak cation exchanger Amberlite XE-64, is an extremely valuable method for the chromatographic purification of pancreatic ribonuclease, but the us...

The advanced treatment of condensate water is important for efficient reuse resources, especially in confined space. In this work, a novel integrated process ion exchange resins and activated carbon proposed to remove various pollutants water. A fixed bed column pre-treated basic anion resin, acidic cation mixed modified was applied ionic pollutants, organic adjust the pH value output effects t...