Toxic Metal Ions
Sorption of Pb(II), Cd(II), and Ni(II) Toxic Metal Ions by Alginate Bentonite
... Mineral clay such as bentonite, has been found to be capable of removing toxic metal ions in wastewater through sorption process [1]. The abundance of this naturally occurred low cost bentonite makes ...
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Synthesis and Thermal Studies of Polyaniline Stannic Silicate and Its Role in the Removal of Toxic Metal Ions
... A composite ion exchange material, polyaniline stannic silicate was prepared under different experimental conditions. Ion exchange material synthesized at pH 1.0 shows an ion exchange capacity 1.6 meq/g for Na + ...
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Influence of Dielectric Constant on Complex Equilibria of L dopa Complexes of Toxic Metal ions
... of the binary systems decrease in the order Hg(II) > Cd(II) > Pb(II). The trend in variation of complex stability constants with change in the dielectric constant of the medium is explained on the basis of ...
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Equilibrium Based Computer Studies of Heterobinuclear Complexes of Toxic Metal Ions Involving Biologically Significant Ligands
... The toxic metal ions inevitably exist as metal complexes in biological systems by interaction with the numerous molecules possessing groupings capable of complexation or ...for metal ...
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Removal efficacy of biosorbents and low cost adsorbents for toxic metal ions: Chemical free purification of water
... heavy metal ions from aqueous solutions and water samples from industrial ...of toxic metals took place by low cost adsorbents such as activated carbon, walnut shell, waste tea, sawdust, zeolite, ...
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ADSORPTION OF TOXIC METAL IONS ONTO CHITOSAN AS BIOSORBENT
... of metal ions for these sorbents is explained by the relatively high proportion of nitrogen ...The metal sorption capacity of chitosan varies with crystalline, affinity for water, deacetylation ...
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Chemical Speciation of Complexes of L-phenylalanine and maleic acid with toxic metal ions in Dimethylformamide -Water Mixtures
... squares of deviation in concentrations of the metal, ligand and hydrogen ions at all repre- sented by the model). For an ideal normal distri- bution, the values of kurtosis and skewness should be three and ...
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In Situ Immobilization on the Silica Gel Surface and Adsorption Capacity of Poly[N (4 carboxyphenyl)methacrylamide] on Toxic Metal Ions
... bicarbonate ions cadmium(II) and manganese(II) mainly exist in the form of hydroxy ions M(OH) + and high adsorption compared with ammonium acetate buffer due to their partial subsidence at the surface of ...
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Removal of Toxic Metal Ions Using Modified Lignocellulosic Fibers as Eco-Friendly Biosorbents: Mathematical Modeling and Numerical Simulation
... respectively, from The acetate buffer was prepared with sodium acetate and glacial acetic acid. NaOH (0.10 mol.L -1 ) and HCl (0.10 mol L -1 ) solutions were used for pH adjustments. Erlenmeyers (50.0 mL) and an orbital ...
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Selective Cation Recognition by p-Tetranitrocalix[4]arene
... p-TNC4 was chosen for the evaluation of its chromogenic sensing behavior towards toxic metal ions because this macromolecule bears nitro groups as binding sites along with macrocyclic effect. ...
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Vol 8, No 2 (2019)
... Cd(II) ions, the absorption intensity increased by 64, 49, 26 and 69 % at 681, ...the toxic metal ions promote an increase in the amount of basic components of Spirulina ...Pb(II) ions ...
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Application of Pineapple Peel Activated Carbon as an Adsorbent for the Removal of Toxic Heavy Metal Ions (Cu2+, Cd2+, Ni2+) from Synthetic Waste Water
... The effect of contact time was studied at room temperature at time interval 30, 60, 90, 120 and 150 minutes using 0.5g of adsorbent dose and 40 ppm initial concentration of metal ions. The results obtained ...
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Metal ions as antibacterial agents
... Related to copper toxicity mechanisms in bacteria, there is difference between cells in culture and cells which are exposed to solid copper. In culture, cells are in a growing state when they are exposed to copper ...
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2 HAAT: A new novel polymer possessing excellent biological activities and ion exchange properties
... of metal ion depends upon pH of the ...only metal ion in the solution available for adsorption which increase uptake of metal ...of metal ions taken up by the resinous polymers increase ...
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MACROCYCLIC METAL COMPLEXES: FROM STRUCTURE TO ACTIVITY
... a metal ion almost systematically increases the activity or contributes to mitigate the side effects of the organic parent compounds ...a metal complex rather than the parent ligand and some side effects ...
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Chronic toxic metal poisoning and neurodegenerative diseases
... this toxic metal (He et ...of toxic neuropathies (Ekor and Odewabi, ...to toxic agents, and are related to the dose and duration of exposure, and to host ...to toxic metals: they are ...
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Structure Elucidation and Biochemical Characterization of Environmentally Relevant Novel Extradiol Dioxygenases Discovered by a Functional Metagenomics Approach
... of metal ions in their reaction centers, the relative activity in the presence of different metal ions was studied by replacing metal ions in the active ...The metal ...
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Evaluation Of Sorption Behavior Of Immobilized Karkashi Leaves (Sesamum Indicum) On Pb2+, Cu2+And Zn2+ In Aqueous Solution
... of metal ion on to the Karkashi leaves with increasing initial metal ion concentration is illustrated in Figures ...in metal ion concentration for all metals under study due to the increase in number ...
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Metal ion interaction with electron rich species
... Total metalsdetermination requires the extraction of the elementfrom a complex matrix. The detection step usingatomic absorption spectroscopic techniques is usually performed without matrix removal, which may lead to ...
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Electrochemical co-detection of Heavy Metals in Astragalus Membranaceus by Anodic Stripping Voltammetry
... However, A variety of metal staggered deposition led to incomplete dissolution, thereby affecting the reproducibility and accuracy of the analysis [55]. Here, a much more indicative method was given to optimized ...
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