Results 261 to 270 of about 204,542 (311)
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Chemosphere, 1999
Abstract In this study, the rates of degradation of organic compounds by several AOPs (H2O2/UV, Fe(III)/UV, Fe(III)/H2O2/UV, Fe(II)/H2O2 and Fe(III)/H2O2) have been compared. Experiments were carried out at pH ≈ 3 (perchloric acid / sodium perchlorate solutions) and with UV reactors equipped with a low-pressure mercury vapour lamp (emission at 253.7 ...
J. De Laat +3 more
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Abstract In this study, the rates of degradation of organic compounds by several AOPs (H2O2/UV, Fe(III)/UV, Fe(III)/H2O2/UV, Fe(II)/H2O2 and Fe(III)/H2O2) have been compared. Experiments were carried out at pH ≈ 3 (perchloric acid / sodium perchlorate solutions) and with UV reactors equipped with a low-pressure mercury vapour lamp (emission at 253.7 ...
J. De Laat +3 more
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International Journal of Chemical Reactor Engineering, 2018
Abstract The photolysis of iron(III) organic complexes in the presence of natural and simulated light was a concern for the role it plays within the environment in terms of producing hydroxyl radicals able to degrade organic products. In the present work, the study focused on two iron(III) organic complexes.
Besma Anfal Dekkiche +4 more
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Abstract The photolysis of iron(III) organic complexes in the presence of natural and simulated light was a concern for the role it plays within the environment in terms of producing hydroxyl radicals able to degrade organic products. In the present work, the study focused on two iron(III) organic complexes.
Besma Anfal Dekkiche +4 more
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Spectrophotometric Determination of Fe(II), Fe(III), and Total Fe
Journal of Pharmaceutical Sciences, 1971Abstract The orderly use of two known reactions [Fe(II) with α,α'-dipyridyl and Fe(III) with ascorbic acid] allowed to take place successively in the same aliquot sample solution provides a procedure for the quantitative determination of Fe(II), Fe(III), and total Fe. The procedure is simple, rapid, and sensitive enough to cope with samples containing
Christos Zachariades +1 more
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Inorganic Chemistry, 1996
Novel Fe(III)Fe(III) and Fe(II)Fe(III) complexes [Fe(2)(BBPMP)(&mgr;-OAc)(&mgr;-X)](n)() (1, X = OAc(-), n = 1+; 2, X = OH(-), n = 1+; 3, X = OAc(-), n = 0; 4, X = OH(-), n = 0), where BBPMP(3)(-) is the anion of 2,6-bis[(2-hydroxybenzyl)(2-pyridylmethyl)aminomethyl]-4-methylphenol, and OAc(-) is acetate, were prepared in order to provide models for ...
Ademir, Neves +5 more
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Novel Fe(III)Fe(III) and Fe(II)Fe(III) complexes [Fe(2)(BBPMP)(&mgr;-OAc)(&mgr;-X)](n)() (1, X = OAc(-), n = 1+; 2, X = OH(-), n = 1+; 3, X = OAc(-), n = 0; 4, X = OH(-), n = 0), where BBPMP(3)(-) is the anion of 2,6-bis[(2-hydroxybenzyl)(2-pyridylmethyl)aminomethyl]-4-methylphenol, and OAc(-) is acetate, were prepared in order to provide models for ...
Ademir, Neves +5 more
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Fe(III)·Bleomycin-DNA system. Evidence of Fe(III) to DNA coordination
Inorganica Chimica Acta, 1983Abstract Bleomycin (BLM) are a family of glycopeptide antibiotics clinically prescribed for the treatment of selected neoplastic diseases [1]. This drug, which both chelates metal ions and binds to DNA, includes a degradation of DNA in a reaction that has been shown to depend,in vitro, on the presence of Fe(II) and molecular oxygen [2]. At the end of
Jean Paul Albertini +1 more
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Adsorption characteristics of Fe(III) and Fe(III)–NTA complex on granular activated carbon
Journal of Hazardous Materials, 2004The adsorption of Fe(3+) ion on granular activated carbon has been studied in kinetic and equilibrium conditions taking into account the adsorbate concentration, temperature and solution pH as major influential factors. In addition, the effect of nitrilotriacetic acid on adsorption reaction as a complexing agent has been examined.
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A reappraisal of Fe(III) adsorption by melanin
Journal of Neural Transmission, 2014The adsorptive capacity of melanin for Fe(III) was investigated. Iron is involved in promoting the formation of reactive oxygen species which has consequently been associated with Parkinson's disease. Neuromelanin has been suggested to act as an iron scavenger and, therefore, determining the capacity of melanin to adsorb iron is relevant.
Rhiannon Lee, Schroeder +1 more
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Mössbauer frozen solution studies of Fe(III) nitrate and Fe(III) perchlorate
Journal of Inorganic and Nuclear Chemistry, 1975Abstract Frozen solutions of 0·67 M Fe (No3)3 and Fe (ClO4)3 and have been studied by Mossbauer resonance. Addition of hydroxyl ion induces quadrupole splitting. A phase transition (from Q.S. = 1·67 mm/sec to Q.S. = 0·38 mm/sec) is observed when the temperature is raised; after the disappearence of the absorption.
F.A.B. Chaves, V.K. Garg
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Paramagnetic properties of Fe(II) and Fe(III)
Journal of Chemical Education, 1977This series of tests is designed to correct the misconception that compounds do not have magnetic properties.
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Inorganic Chemistry, 2012
Two new dinucleating ligands (H3L(2) and HL(3)), derivatives of a well-known dinucleating ligand (HL(1)) with two bis-picolylamine sites connected to a bridging phenolate, with hydrogen-bonding donor groups at two of the pyridine moieties were designed and synthesized.
Comba, Peter +6 more
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Two new dinucleating ligands (H3L(2) and HL(3)), derivatives of a well-known dinucleating ligand (HL(1)) with two bis-picolylamine sites connected to a bridging phenolate, with hydrogen-bonding donor groups at two of the pyridine moieties were designed and synthesized.
Comba, Peter +6 more
openaire +5 more sources