This paper describes the Spectrophotometric and titrimetric methods for the determination of gentamycin and amoxycillin. The use of potassium iodate reagent for direct titrimetric method for the determination of some selected antibiotic has been described. The end point was characterized by a sharp change in color from colorless to deep red followed by spectrophotometric measurements.

Systematic explorations of new phases in the Ag(I)-Ti(IV)/V(V)/Mo(VI)-iodate systems led to four new quaternary silver iodates, namely, Ag(2)Ti(IO(3))(6), Ag(2)(VO(2))(IO(3))(3), Ag(2)(V(2)O(4))(IO(3))(4), and Ag(2)(MoO(2))(IO(3))(4). They represent the first examples of silver iodates containing d(0) transition metal cations. Ag(2)Ti(IO(3))(6) is isostructural with K(2)Ti(IO(3))(6) and its str...

The nonlinear optical properties of 21 crystalline materials, principally of the iodate family of compounds, were evaluated using the second-harmonic powder technique developed by Kurtz and Perry. By this method the secondharmonic radiation generated in a powdered sample by a laser at 1.06 Mm was compared with a known reference, LlIOj in this case. Of the materials tested, 12 have previously be...

The common points and differences between the Bray-Liebhafsky and BriggsRauscher reactions are discussed. The reactants of the non-catalyzed version of the Briggs-Rauscher reaction being the same as those of the Bray-Liebhafsky reaction plus a reducing organic compound, the mechanisms of these two systems must have several common points. The marked difference between the oscillating behaviours ...