Metal-cations
Optimization of divalent metal cations for maximal concentration of Monacolin K in Monascus M1 by response surface methodology
... they had no influence on biosynthesis of lovastatin in A. terreus. MK is a fungal polyketide produced by Monascus spp. and its chemical structure is the same as that of lovastatin produced by A. terreus (Endo 1980; ...
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Chromatographic Behavior of Metal Cations on Addition of Various Additives in Aq. BAC Mobile Phase
... the metal cations on the silica layer by using a mobile phase system containing 3% ...of metal ions in their mobile phases over an aqueous mobile phase ...
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FTO Coated Glass Electrode Functionalization with Transition Metal Cations Receptors via Electrostatic Self-Assembly
... The aim of this work was an application of new surface materials obtained by modification of FTO coated glass electrode surface with ionic assemblies in electrochemical study of these materials. In this work the ...
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Interaction potentials and transport properties of coinage metal cations in rare gases
... Values calculated from our interaction po- tentials are in good to excellent agreement with experimental data where they exist, and in each case our potential was found either to be in agreement with the best potential ...
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Recognition of metal cations with surface immobilized crown ether functionalized poly(ferrocenylsilane)
... different metal cations has been ...to metal ions in the ...of metal ions as each kind of ion shows a characteristic position of the peak ...
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Properties of the excited electronic states of guanine quartet complexes with alkali metal cations
... (Received 25 October, revised 2 December, accepted 24 December 2019) Abstract: G-quartets are supra-molecular structures that consist of four guanine molecules connected by eight hydrogen bonds. They are additionally ...
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Chromatographic Separation of Heavy Metal Cations on a Silica gel-G
... C. Separation: For the separation, the metal ions to be separated were mixed in equal amounts. A test solution of the resultant mixture was spotted onto the activated TLC plate, and was then air dried. The plates ...
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Optical Studies on Extraction of Some Transition Metal Cations Through Liquid Membrane Containing 1-Phenylazonaphth-2-Ol as Ionophore
... of metal cations depends mainly upon the structure and the concentration of the ionophore and also on the concentration of metal ...extract metal cation from an aqueous phase into an Organic ...
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Development of capillary electrophoresis methods for the separation of metal cations
... To maintain a high surface charge density on the inner surface o f the capillary and create a strong electroosmotic flow, capillary cleaning procedures are necessary (129). It was sufficient to condition a new capillary ...
352
Overview on Metal Cations Extraction by Azocalixarenes
... In this overview, our main aim is to present the design, preparation, characterization, and extraction/sorption properties of chromogenic azocalix[4]arenes (substituted with different groups) toward metal ...
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Extraction of alkali metal cations into various organic liquid membranes using dipropyleneglycoldibenzoate as carrier
... towards metal cations, and their enhanced complexation can be achieved by the addition of aromatic end groups to simple glycols [8] using bulk liquid membrane (BLM) and supported liquid membrane (SLM) for ...
8
ABSTRACTS: April 1987101-107
... The product selectivity of the photocatalytic reaction of methanol with water is changed drastically by the addition of alkali metal cations (Na) to Rh- and Pd- loaded TiO, cataly[r] ...
7
ION ANALYSIS Capillary Electrophoresis pdf
... polyvalent metal cations, this adsorption can be considered to be ...that metal ions present in the BGE (even as an impurity) can adsorb onto the capillary ...of metal ions is counteracted by ...
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Evaluation of Diazatetraoxa Cryptand as Extractant for Transition Metals and Pb2+
... Table 1 shows the extractability of Mn 2+ , Cu 2+ , Co 2+ , Zn 2+ and Pb 2+ picrates for ligand (1) into chloroform and dichloromethane phases at pH 5.5. Cu 2+ was carried with the highest extraction efficiency i.e. ...
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The bio physics of condensation of divalent cations into the bacterial wall has implications for growth of Gram positive bacteria
... Keywords: Gram-positive bacteria; teichoic acid; cell wall; metal cations; polyelectrolytes;... The bacterial cell wall is formed by a rigid network of carbohydrates peptidoglycan and.[r] ...
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Non interpenetrated metal organic frameworks based on copper(II) paddlewheel and oligoparaxylene isophthalate linkers: synthesis, structure and gas adsorption
... Nanoporous metal–organic frameworks (MOFs) constructed from metal cations and clusters bridged by polyfunctional organic linkers are an important class of hybrid materials which show great promise ...
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Functionalized Activated Carbon for the Removal of Heavy Metals
... under controlled conditions. Characterization by Thermogravimetric analysis, FTIR and NaOH titration indicated the formation –COOH and little amount of –OH groups with conc. of high order. These polar –C OOH ...
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“NBO- NEDA and AIM Studies on the Interactions between Benzocryptand [222B] and Li+, Na+, K+ and Ca2+” by Reza Behjatmanesh–Ardakani, Motahare Delarami Arab, Zahrabatoul Mosapour Kotena, Zeinab Rousta, Abdullah Saleem, Malaysia.
... alkali metal ions such as Li + , Na + , and K + ...with cations has been a subject of several reports 13-15 ...alkali metal univalent cations like Li +, Na + , K + , and alkaline earth metals ...
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Removal of Heavy Metals from Aqueous Solution by Zeolite in Competitive Sorption System
... tabular morphology shows an open reticular structure of easy access, formed by open channels of 8- to 10-membered rings [8]. Considerable research has been conducted to characterize the chemical, surface, and sorption ...
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In-Situ Remediation of Heavy Metals in Sewage Sludge Using Some Pesticides and Inorganic Amendments
... heavy metal cations compared with metal oxides and that in natural system, uptake of heavy metal cations by iron or manganese oxides is often more significant than adsorption on silica ...
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