An analysis is made of some of the practical problems of ion-exchange chromatography. A comparison is made with gas—liquid chromatography and this leads to the suggestion that improvements can be made in the monitoring system and in the selection of eluents for specific separations. The need for a general purpose gradient elution apparatus is stressed. Some theoretical aspects of several factor...

Some novel functional resins were developed for highly selective separation and/or determination of mercury, selenium, fluoride and hydrogen peroxide, by simple modification of common ion—exchange resin with appropriate reagents. These reagents should have three functional properties, namely selective reaction with the determinant of interest, an ion—exchange reaction with the resin and physica...

Patterning materials with different properties in a single film is fundamental challenge and essential for the development of next-generation (opto)electronic functional components. This work introduces concept ion exchange lithography demonstrates spatially controlled patterning electrically insulating films semiconductors tunable optoelectronic properties. In lithography, reactive nanoparticl...

Na or K ion rechargeable battery is started to garner attention recently in Place of Li+ ion cell. It is important that A+ site ion can move in and out the positive-electrode materials. When K2Ta2O6 powder had a pyrochlore structure was only dipped into NaOH aqueous solution at room temperature, Na2Ta2O6 was obtained. K2Ta2O6 was fabricated from a tantalum sheet by a hydrothermal synthesize wit...