polarographic methods have been developed for the determination of two cephalosporins namely cefotaxime (ctx) and ceftriaxone (ctr) in pharmaceutical formulations. well defined peaks at potentials –1.432 v vs. sce for ctx and –1.627 v vs. sce for ctr were obtained in the presence of tungsten (vi). the method has been successfully applied for the determination of above mentioned cephalosporins i...

<p>Due to the competitive Malaysian residential market with a large number of projects that offered almost similar features lead difficulties purchasing among homebuyers. These days, homebuyers are very selective, careful, and required more time in deciding due high numbers abundant, problem Malaysia. As result, unsold were reported. Therefore, understanding homebuyer criteria purchase is...

Silver nanoparticles (NPs) have been the subjects of researchers because of their unique properties (e.g., size and shape depending optical, antimicrobial, and electrical properties). A variety of preparation techniques have been reported for the synthesis of silver NPs; notable examples include, laser ablation, gamma irradiation, electron irradiation, chemical reduction, photochemical methods,...

This paper starts with the characteristics and advantages of microwaves processing. The shortcomings of fixed frequency, typically at 2.45 GHz were also mentioned. On account of this, the newly developed variable frequency microwave (VFM) fabrication was mentioned and adopted in place of the fixed frequency process. Two cases of fixed frequency microwave processing of materials were described; ...

the processing methods of kaolin are based on its high a b i l i t y of water absorption and converting easily to fine perticles of kaolin dispersed in water. so, depending on the dimension of impurities of kaolin, one can choose the pr6pe1: classifier f o r removal of them. sometimes, the texture of kaolin is not suitable for water absorption and resultant dispersion. in this case,the ore shou...

This paper starts with the characteristics and advantages of microwaves processing. The shortcomings of fixed frequency, typically at 2.45 GHz were also mentioned. On account of this, the newly developed variable frequency microwave (VFM) fabrication was mentioned and adopted in place of the fixed frequency process. Two cases of fixed frequency microwave processing of materials were described; ...