Formation of metal ligand complex species of 5-sulphosalicylic acid with Ca, Mg and Zn metal ions have been studied potentiometrically in various composition (0.0, 0.5, 1.
View Article and Find Full Text PDFThis article reports on the optical properties of 0.5% mol of Sm(3+), Dy(3+) ion-doped B2O3-TeO2-Li2O-AlF3 (LiAlFBT) glasses. The glass samples were characterized by optical absorption and emission spectra.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
July 2003
The iron phosphate minerals satterlyite and gormanite have been investigated by EPR and optical absorption studies. The optical results indicate the presence of ferrous and ferric ions in both minerals. In gormanite the site symmetry of Fe(III) is near octahedral whereas in satterlyite it is tetragonally distorted.
View Article and Find Full Text PDFBiochem Int
February 1992
A manganese containing superoxide dismutase was purified to homogeneity from the venom of scorpion Heterometrus fulvipes by ammonium sulfate fractionation followed by gel filtration on Sephadex G-100 and ion exchange chromatography on DEAE-cellulose. The enzyme has a molecular weight of 100,000. Optimum pH for enzyme activity was 8.
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