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Showing 1 to 20 of 32 for “"Amberlite"”.
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Reactions of carbonyl compounds with Amberlite IR-45
… experimental relationships which exist between Amberlite IR-45 and various carbonyl compounds with the hope that the knowledge obtained may ultimately form the basis of a new separation technique.
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Trennung von Ionen Seltener Erdelemente mittels Extraktionschromatographie unter Nutzung Solvent imprägnierter Harze
In dieser Arbeit wurde der Einsatz von Amberlite XAD 7 HP imprägniert mit Di-(2-ethylhexyl)phosphorsäure als Solvent imprägniertes Harz für die Trennung von Ionen Seltener Erdelemente in einer Trennsäule untersucht. Mittels Batchversuchen wurden die Extraktionsisothermen und Extraktionskinetiken …
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Regulation of Volatile Fatty Acid Synthesis in Megasphaera Elsdenii and Hexanoic Acid Utilisation by Pseudomonas Putida
… adsorption to anion exchange resins. Initially, Amberlite IRA-93 (weak base anion-exchange resin) and Amberlite IRA-400 (strong base anion-exchange resin) resins were tested for their ability to adsorb and desorb butyric and hexanoic acids from water and peptone-yeast-glucose media. It was …
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Ungesättigte Dithioetherliganden : selektive Extraktionsmittel für die Gewinnung von Palladium(II) aus Sekundärrohstoffen
… Zweck auf hydrophilem Kieselgel und organophilem Amberlite® XAD 2 adsorbiert. Die Oligo(dithioether)-Liganden basieren auf 1,2-Dithiobenzen oder 1,2-Dithiomaleonitril-Einheiten, welche über Tris(oxyethylen)ethylen- oder Trimethylen-Brücken miteinander verknüpft sind. Mit Hilfe von Batch-Versuchen …
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An investigation of cation-exchange in aqueous pyridine
… behaviour of a typical carboxylic acid resin, Amberlite IRC 50, and a typical sulphonic acid resin Zeo-Karb 225, in aqueous and aqueous pyridine solutions of the alkaline earth metal cations. The ion-exchange phenomena investigated included: swelling, preferential sorption of solvent and …
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An investigation on the removal of escherichia coli by ion exchange resins
… The results indicated the anion exchange resin, Amberlite IRA-400, possessed the highest potential for removing Escherichia coli.
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Removal of selected water disinfection byproducts, and MTBE in batch and continuous flow systems using alternative sorbents.
… material with unique surface characteristics, Amberlite® XAD-16, a weakly basic anion exchange resin, Amberjet®, a strongly basic anion exchange resin, and granular activated carbon (GAC). Batch experiments were conducted on spiked Milli-Q® and lake water matrices. Results indicate considerable …
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Determinación cualitativa de aminoácidos en miel, utilizando resina de intercambio iónico y cromatografía de capa fina
… de columna con resina de intercambio iónico AMBERLITE IR-120 la cual extrajo los aminoácidos presente en las muestras analizadas, se separaron e identificaron por medio de cromatografía de capa fina bidimensional, usando como revelador una solución de ninhidrina con diciclohexilamina, para …
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Halogenorganische Verbindungen in Umweltkompartimenten
… und Molekülfiltration. Verwendet wurden Amberlite XAD-8, Duolite A-7 und Sephadex G 25. Nur eine kleine Fraktion besteht aus unpolaren, nicht ionischen und kleinen halogenierten Komponenten. Gerade diese Komponenten werden durch Gaschromatographie leicht nachgewiesen. Dieses ist der Grund …
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Towards the separation of linear α-olefins from industrial process streams using transition metal stationary phases
… in the GC column as compared to the microporous Amberlite IR(120) resin. Olefins were so strongly retained on the Ag⁺exchanged Amberlyst A-15 resin that they could only be eluted efficiently from the GC column at elevated temperatures. The Ag⁺ exchanged resin was however found to undergo …
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The manufacture of monosodium phosphate from wet process acid by amine extraction
… and kerosene solut ions of the commercial amine Amberlite LA-1. In a countercurrent extraction process, approximately twenty theoretical stages would be needed to reduce the iron concentration to the food grade level. Sulphate is held in the organic phase. Monosodium phosphate can be recovered by …
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Innovative Purification Protocol for Heparin Binding Proteins: Relevance in Biopharmaceutical and Biomedical Applications
… from insoluble inclusion bodies, using a weak amberlite cation (IRC) exchanger. This approach is an alternative to conventional affinity column chromatography, which exhibit several disadvantages, including time-consuming experimental procedures and regeneration and results in high cost for …
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Lactose Polymerization to Polylactose: Furthering Our Understanding for Commercialization
… carbon, ion exchange resins composed of Amberlite and Ambersep and diatomaceous earth reduced the hydroxymethylfurfural (HMF) content to a level that was lower than the maximum level determined by the Joint FAO/WHO Expert Committee on Food Additives HMF limit in polydextrose, while …
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Comprehensive Analysis of Effluent Organic Matter from Five Wastewater Treatment Plants in Connecticut and Comparison to Natural Organic Matter
… fraction) and XAD4 (transphilic fraction) Amberlite resins. Extraction efficiencies of effluent organic matter by DAX8 resins ranged from 18 to 42 percent as a result of larger content of hydrophilic organic matter than natural organic matter. Average organic matter molecular weights by …
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Strategies for reducing the mutagen content of chlorinated aqueous media
… 22°) utilizing the non-polar, polymeric resin, Amberlite XAD-4, was successful. As these system conditions are comparable to those present in drinking water treatment facilities, application of this resin to such systems should be investigated. However, typical concentrations of the chlorinated …
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The use of advanced treatment methods for removal of color and dissolved solids from pulp and paper wastewater
… study. The ion exchange resin investigated was Amberlite IRA-68, manufactured by Rohm and Haas. Carbon treatment consisted of batch and column operation; ion exchange column treatment was used. The results of the study indicated that the required effluent quality was achieved by activated carbon …
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Separación de aminoácidos y derivados utilizando resinas impregnadas de extractante
… amino acids was investigated by impregnation of Amberlite XAD-4 resin with tri-alkylmethylammonium chloride (TOMAC) and for betaine separation the same resin was impregnated with dinonilnaftalensulfonic acid (DNNSA).
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A study of zinc separation from an alkaline leach liquor using fixed and moving bed ion exchange systems
… separation. Ten resins were tested from which Amberlite IRC-718 was selected. The resin was found to tolerate the high pH involving the process and give a favourable equilibrium relationship for 0.1 and 0.2M NaOH solutions.<br/><br/>Work concerning fixed and moving bed processes was done to …
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Study of the aldopentoses and fucose in human urine by thin-layer chromatography
… accomplished by means of ion- exchange resins Amberlite IR-120 (H⁺) and Amberlite IRA -400 (acetate) using two glass columns in tandem. • 5. Specificity is conferred on the estimates by the comparable behaviours of the urinary aldopentoses and fucose so estimated and the authentic sugars on the …
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Identification and characterisation of cardiolipin autoantibodies
… the separation of antiphospholipid antibodies. Amberlite beads with a diameter of iooA were either used untreated as a control, or coated with cardiolipin in a column. Human serum was then passed through the column and eluted with three salt gradients (0.05-1 .OM NaCl) It was also necessary to …
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