The acoustic properties of ion-exchange resins strongly depend on the hydration natures of counterions as well as the cross-linking percentage and base materials. In this paper, ionexchange resin particles are discriminated on the basis of the acoustic nature of counterions using a coupled acoustic-gravity field. Ion-exchange resin particles are aggregated at the equilibrium positions, which ar...

polypyrrole (ppy/cl) and polyaniline (pani/cl) synthesized chemically onto sawdust (sd)was used for removal of thiocyanate (scn-) ions from aqueous solutions. the effect of someimportant parameters such as ph, initial concentration, sorbent dosage, and contact time onuptake of scn- was investigated. ppy/sd was found to be much more effective sorbent thanpani/sd for uptake scn- from aqueous solu...

One of the ultimate goals of ion chromatography is to determine both anions and cations found in samples with a single chromatographic run. In the present article, recent progress in ion-exclusion/ion-exchange chromatography for the simultaneous determinations of inorganic anions and cations are reviewed. Firstly, the principle and the control for the simultaneous separation and detection of ...