The present paper deals with the synthesis, ion exchange properties and analytical applications of basic lead molybdate as a new inorganic ion-exchanger. A simplified synthesis and physicochemical properties which show that the chelating resin HQCR4 in H behaves as a weak cation exchanger. The results of rate of sorption experiments reveal that the rate of sorption is high during the initial pe...

Demin water yang digunakan untuk utilitas sangat berpengaruh terhadap proses produksi karena jika terjadi kendala bahkan sampai tidak ada supply demin maka akan berhenti. Oleh itu, dalam penelitian ini dilakukan analisis lebih lanjut mengenai penyebab menjadi off spec dan cara memanfaatkan lime treated (LTW) sesuai dengan menggunakan metode perbaikan (pemanfaatan kembali) air melakukan deminera...

Double-barreled potassium or chloride ion-selective microelectrodes were constructed using a liquid ion exchanger. Technical details of the fabrication of double-barreled microelectrodes, having a PD sensor as one barrel and an ionic sensor as the other, are described. The sensitivity of K+ or CI- ion-selective microelectrodes exhibited an approximately Nernstian response over a temperature ran...

One of serious problems of preparative carbohydrate chemistry is the separation of aldoses from ketoses. Of a large number of chromatographic procedures for separation of aldoses and ketoses described in the literature, only the use of anion exchangers in the bisulfite form afforded satisfactory resolution. Samuelson and Sjoström [1] separated fructose from glucose and mannose on a Dowex 2 ion-...

The anal papillae of freshwater mosquito larvae are important sites of NaCl uptake, thereby acting to offset the dilution of the hemolymph by the dilute habitat. The ion-transport mechanisms in the anal papillae are not well understood. In this study, the scanning ion-selective electrode technique (SIET) was utilized to measure ion fluxes at the anal papillae, and pharmacological inhibitors of ...

The role of the Na+/H+exchanger in rat hearts during ischemia and reperfusion was investigated by measurements of intracellular Na+ concentration ([Na+]i) and intracellular and extracellular pH. Under our standard conditions (2-Hz stimulation), 10 min of ischemia caused no significant rise in [Na+]ibut an acidosis of 1.0 pH unit, suggesting that the Na+/H+exchanger was inactive during ischemia....

Cobalt(II)-M-hexacyanoferrate(II), M = K, NH4, Cs, as synthetic sorbents have ion exchange properties selective for monovalent cations. They show a higher selectivity for the ions with larger crystal radius if the sorption takes place in dilute solutions, whereas in concentrated sulutions the selectivity sequence is reversed. The phenomenon is attributed to the differences in physico-chemical p...