The ultraviolet light activation of persulfate (PS) under alkaline conditions was evaluated for treating hexacyanoferrate (III) ion ([Fe(CN)6]3-). effect the wavelength type (i.e., UVA and UVC), initial PS concentration (0.3, 0.6, 0.9 g L−1), pH value (11 13) on degradation 50 mg L−1 [Fe(CN)6]3- were studied. Finally, role main degrading agents (SO4•-, O2•-, or HO•) involved in process determin...

sol-gel and polymeric membrane electrodes, based on thiacalix[4]arene as a neutral carrier, weresuccessfully developed for the detection of vo2+ in aqueous solutions. the sol-gel and pvcmembrane electrodes exhibited linear response with nernstian slopes of 29.3 and 28.4 mv perdecade, respectively, within the vanadyl ion concentration ranges from 1.0 × 10-6 to 1.0 × 10-1mol dm-3 and from 1.0 × 1...

A method is described for the rapid isolation of a plasma membrane fraction containing a high concentration of intact bile canaliculi from the rat liver . Isolated bile canaliculi retain most of the ultrastructural features exhibited in the intact liver cell . The final fraction contains 5'-nucleotidase activity at approximately the same concentration as that in previous preparations of plasma ...