1. The mid-point reduction potentials of the various groups in xanthine oxidase from bovine milk were determined by potentiometric titration with dithionite in the presence of dye mediators, removing samples for quantification of the reduced species by e.p.r. (electron-paramagnetic-resonance) spectroscopy. The values obtained for the functional enzyme in pyrophosphate buffer, pH8.2, are: Fe/S c...

Ab ac : In hi con ib ion, e p e en he de elopmen of D naSCOPE a a f ll di ib ed con in o planning app oach fo decen ali ed ene g ni o gani ed in D namic Vi al Po e Plan (DVPP). The o k a hand elabo a e on po ible ba ic algo i hm fo he DVPP planning a k, mo i a e he choice of a f ll di ib ed algo i hm and gi e de ail and e al a ion e l fo he p e en ed em. I i ho n, ha D naSCOPE mee he eq i emen ...

A rare hybrid Metal-Oxide incorporated Zeolitic Imidazolate Framework, MOZIF-1, containing tetrahedral Zn(II) and Mo(VI) centres has been synthesized. MOZIF-1 can degrade methyl orange and orange II dyes under visible light. Na3[PMo12O40] is the source of Mo(VI) in MOZIF-1.

We report here the experimental and theoretical investigation of bis(4-furoyl-3-methyl-1-phenyl-2-pyrazolin-5-one)oxoperoxomolybdenum(VI) complex molecule. It was prepared by reaction (2:1) 4-furoyl-3-methyl-1-phenyl-2-pyrazolin-5-one [MoO(O)2]2+ in an aqueous ethanol medium. Characterization performed elemental analysis, molar conductivity, magnetic measurements, electrochemical infrared elect...

Chromium (VI) Considered as a serious health hazard and it has attracted attention as a pollutant in natural waters. The sources of contamination of chromium in natural waters and in the Environment are from electroplating, tanning industries and waste solution from oxidative dyeing and leaching from sanitary land – fills, In view of this the separation and determination of chromium has been re...

In this study, ZIF-67 was synthesized through solvothermal method to remove Cr(VI) ions from aqueous solution. To improve the structural properties of ZIF-67 and its adsorption capacity, optimization of the synthesis conditions was carried out based on maximum Cr(VI) uptake. From experiments, the optimum condition was revealed as solvent: metal ion molar ratio of 4.6:1, ligand: metal ion molar ...

The main goal of this study is to investigate the capability of zeolites A and P synthesized from Iranian natural clinoptilolite for uranium uptak. The removal of uranium(VI) from aqueous solution via ion exchange by zeolites in a single component system with various contact times,  temperatures and initial concentrations of uranium(VI) was investigated. The experimental results we...

In this research, the uptake of Cu, Mo, Zn, As(III) and Cr(VI) by mesquite (Prosopis spp.) roots and shoots from two different sources was studied. The first source was seeds collected from plants grown in mine tailings in Arizona, USA (Seeds A) and the other source was seeds from a commercial vendor (Seeds B). In addition, the effects of above mentioned elements on plant growth and nutrient up...