منابع مشابه
Photochemical degradation of azure-b with sulphate radical ion generated by peroxydisulphate ion with cupric ion
In this paper, the photochemical degradation of azure-b by Cu2+/S2O82− process has beenpresented. Cu2+ as photocatalyst and S2O82− ion as photooxidant used in this process. Atextremely low concentrations, cupric ion showed true catalytic activity in the overall process.The influence of various parameters on the performance of the treatment process has beenconsidered, such as pH, concentration o...
متن کاملphotochemical degradation of azure-b with sulphate radical ion generated by peroxydisulphate ion with cupric ion
in this paper, the photochemical degradation of azure-b by cu2+/s2o82− process has beenpresented. cu2+ as photocatalyst and s2o82− ion as photooxidant used in this process. atextremely low concentrations, cupric ion showed true catalytic activity in the overall process.the influence of various parameters on the performance of the treatment process has beenconsidered, such as ph, concentration o...
متن کاملCupric ion complexes of histidine-containing peptides.
The binding of cupric or zinc ion by sperm whale metmyoglobin appears to involve imidazole groups of histidyl residues (4, 5) that occur well removed from the NH2 terminus (6). The binding of each cupric ion by metmyoglobin is accompanied on the average by the displacement of one or more protons beyond that that may be borne by the imidazole group, presumably from peptide amide nitrogen atoms (...
متن کاملSubtle interactions of cupric ion with nucleic acid and components.
In a study of the mechanism of activation of the copper enzyme, ascorbic acid oxidase, it was observed that most compounds which activate this enzyme have the common property of forming complex compounds with cupric ion (l-3). Among these activating substances were ribonucleic acid,’ deoxyribonucleic acid, and certain of their constituents. These substances showed a surprisingly strong affinity...
متن کاملThe thiol groups of fumarase.
Several reagents have been employed to determine the role of the thiol groups in fumarase. The nature of the reaction of these reagents indicates that the thiol groups are not associated with active site structures but are buried in a hydrophobic environment in the interior of the enzyme. Several observations are in accord with this view. The rate of reaction of the thiol groups is much slower ...
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ژورنال
عنوان ژورنال: Fresenius' Zeitschrift f�r Analytische Chemie
سال: 1976
ISSN: 0016-1152,1618-2650
DOI: 10.1007/bf00531105