The electrophoretic behaviour of some metal ions and anions has been studied on Whatman No. 1 paper strips impregnated with zirconnium(IV) phenylethylamine; acetate buffers of different pH were used as background electrolytes. The effect of the ion-exchange material on the mobility of the ionic species was examined. It was found that impregnation of the paper with zirconium(IV) phenylethylamine...

A theoretical analysis is presented that allows in situ measurements of the physical properties of a composite electrode, namely, the electronic conductivity, the ionic conductivity, the exchange-current density, and the double-layer capacitance. Use is made of the current-voltage responses of the composite electrode to dc and ac polarizations under three different experimental configurations. ...

The objective is to concentrate organic acid traces in water samples. The influence of several parameters and their interactions on the adsorption of organic acids on anion exchange resins was studied. A complete factorial design 24 was hence performed. The measured response corresponds to the maximal percolation volume and the studied parameters were the nature and the mass of the resin, the p...

Estimation of extrinsic (kex) and intrinsic (krc) exchange rate constants for labile protons of proteins is indispensable to determine the residuespecific free energies. While kex of labile protons in proteins are determined by experimental methods, the krc of those protons are calculated based on the parameters derived from the model compound studies, in general. We, herein, describe a computa...

Ionic liquids are organic salts that melt at low temperatures and provide a set of properties beneficial for diverse applications. These properties include good thermal stability, high ionic conductivity, low volatility and non-flammability. In this thesis protic ionic liquids have been at focus, which are of interest for use as electrolytes in next-generation proton exchange membrane fuel cell...

Combining strong magnetic anisotropy with strong exchange interaction is a long standing goal in the design of quantum magnets. The lanthanide complexes, while exhibiting a very strong ionic anisotropy, usually display a weak exchange coupling, amounting to only a few wavenumbers. Recently, an isostructural series of mixed (Ln = Gd, Tb, Dy, Ho, Er) have been reported, in which the exchange spli...

Obtaining global hydrogen/deuterium (H/D) exchange data on proteins is an important first step in amide proton exchange experiments. Important information such as the mode of exchange, the cooperativity of folding/unfolding reactions, and the effects of ligand binding can be readily obtained in global exchange experiments. Many interesting biological systems are complexes containing both protei...