2008 DEC 22 - (VerticalNews.com) -- According to a study from Iran, "An easy and fast Fourier transform continuous cyclic voltametric technique for monitoring of ultra trace amounts of metformin in a flow-injection system has been introduced in this work. The potential waveform, consisting of the potential steps for cleaning, stripping and potential ramp, was continuously applied on an Au disk microelectrode (12.5 mu m in radius). ...read more

  2008 DEC 22 - (VerticalNews.com) -- "Specific electric conductivity (EC) of concentrated aqueous solutions of propionic acid (PA), sodium propionate (SP), and water/PA/SP mixtures is measured in the temperature range of 15-90 degrees C. Specific EC passes a maximum at the increase in the electrolyte concentration in the mixtures of water/PA, water/SP, and water/PA/SP containing a similar PA concentration. The maximum EC value of the aqueous PA solution at the given temperature is used as the generalizing term," scientists writing in the Russian Journal of Electrochemistry report ...read more

  2008 DEC 22 - (VerticalNews.com) -- According to recent research from Russia, "A new method is developed to prepare alladium dispersed in a polymeric matrix."

  "Exposure of poly-o-phenylenediamine films in PdCl2 solution showed palladium cations strongly linked by the polymeric matrix to enable reduction of the metal accumulated in the polymer bulk. Optical absorption spectra were studied for poly-o-phenylenediamine saturated with palladium ions and poly-o-phenylenediamine with palladium electroreduced upon impregnation," wrote E.Y. Pisarevskaya and colleagues ...read more