Ion chromatography (IC), developed by Small et al. [1], is widely recognized as a simple and powerful analytical technique for the determination of various inorganic and organic anions and cations [2]. Sulfonated and carboxylated polymer resins and silicas are commonly employed as cation−exchange stationary phases in IC for cationic species. The application of unmodified silica gels as cation−e...

A high acidity extent, as a result of the activation process bleaching earth, is major drawback in production bleached-palm oil. The earth generates problems for equipment well product, which are economically disadvantageous. Addressing this pivotal issue manufacture, more environmentally friendly and efficient using thermal evaluated. Two types bentonite-bleaching collected from two different ...

BiFeO3 is an interesting material due to its multiferroic properties. It attracts attention potential applications in spintronics and microelectronics for data storage, among others. Single-phase bulk from difficult synthesize. The kinetics of perovskite phase formation most often leads the presence impurity phases. has been shown that low levels replacement Bi with rare earth ions lead stabili...

2364 www.thelancet.com Vol 387 June 11, 2016 Expanding waistlines are a problem not just for dietitians and population health specialists but, increasingly, for Earth system scientists too. The waistlines belong largely to the growing global middle class. The world is undergoing a dramatic nutrition transition to western diets. Wealth, industrialisation, and rapid urbanisation are driving a sur...

cation exchange capacity and specific surface area are among some of the important soil characteristics the direct measurement of which is laborious, costly and time consuming. therefore, fractal dimension of particle size distribution has been widely studied in relation with many such dynamic and static processes as transmission of water and solutes, water holding capacity, heat storage and co...

Constraining the systematic evolution of iodine solubility in borosilicate glasses is required for formulation adequate glass matrices able to immobilize 129I representing a major troublesome radioisotopes produced by nuclear anthropic activities. We investigated experimentally change large series synthesized under high-pressure conditions (1.5 GPa) and at 1350 °C. The nature network modifying ...