scholarly journals The Ionic State of Molybdenum in Sulfuric Uterine Solutions of Rhenium Sorption and its Extraction

2022 ◽  
Vol 05 (01) ◽  
Author(s):  
Nargiza Bekbutaeva ◽  
◽  
◽  
Keyword(s):  
Sulfuric Acid ◽  
Ion Exchange ◽  
Acid Solution ◽  
Sulfuric Acid Solution ◽  
Ion Exchange Resins ◽  
High Concentration ◽  
Ionic State ◽  
Acidic Solutions ◽  
Exchange Resins

results of studies of the forms of finding and methods of extracting molybdenum from acidic solutions with a high concentration of sulfuric acid are presented. Ion-exchange resins of various modifications were tested to determine the most effective for molybdenum during its sorption from a sulfuric acid solution.

scholarly journals Ionic State of Molybdenum in Sulfuric Uterine Solutions of Rhenium Sorption and its Extraction

2021 ◽  
Vol 04 (12) ◽  
Author(s):  
Nargiza Bekbutaeva ◽  
◽  
◽  
Keyword(s):  
Sulfuric Acid ◽  
Ion Exchange ◽  
Acid Solution ◽  
Sulfuric Acid Solution ◽  
Ion Exchange Resins ◽  
High Concentration ◽  
Ionic State ◽  
Acidic Solutions ◽  
Exchange Resins

The results of studies of the forms of finding and methods of extracting molybdenum from acidic solutions with a high concentration of sulfuric acid are presented. Ion-exchange resins of various modifications were tested to determine the most effective for molybdenum during its sorption from a sulfuric acid solution.

scholarly journals Application of ion-exchange resins for removing sulphate ions from acidic solutions

2017 ◽  
Vol 68 (1) ◽  
Author(s):  
Marian Holub ◽  
Petra Pavlikova ◽  
Magdalena Balintova ◽  
Michaela Smolakova
Keyword(s):  
Ion Exchange ◽  
Ion Exchange Resins ◽  
Acidic Solutions ◽  
Exchange Resins

Embedding Procedure for Water Swollen Samples

1970 ◽  
Vol 28 ◽  
pp. 504-505
Author(s):  
Ann M. Thomas ◽  
Virginia Shemeley
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Ion Exchange ◽  
Structural Changes ◽  
Cross Linking ◽  
Ion Exchange Resins ◽  
Transmission Electron ◽  
First Pass ◽  
Exchange Resins

Those samples which swell rapidly when exposed to water are, at best, difficult to section for transmission electron microscopy. Some materials literally burst out of the embedding block with the first pass by the knife, and even the most rapid cutting cycle produces sections of limited value. Many ion exchange resins swell in water; some undergo irreversible structural changes when dried. We developed our embedding procedure to handle this type of sample, but it should be applicable to many materials that present similar sectioning difficulties.The purpose of our embedding procedure is to build up a cross-linking network throughout the sample, while it is in a water swollen state. Our procedure was suggested to us by the work of Rosenberg, where he mentioned the formation of a tridimensional structure by the polymerization of the GMA biproduct, triglycol dimethacrylate.

Applications of Ion Exchange Resin in Oral Drug Delivery Systems

2017 ◽  
Vol 7 (03) ◽  
Author(s):  
Kathpalia Harsha ◽  
Das Sukanya
Keyword(s):  
Drug Delivery ◽  
Ion Exchange ◽  
Drug Delivery Systems ◽  
Oral Drug Delivery ◽  
Physical Stability ◽  
Delivery Systems ◽  
Oral Drug ◽  
Ion Exchange Resins ◽  
Exchange Resins ◽  
Oral Drug Delivery Systems

Ion Exchange Resins (IER) are insoluble polymers having styrene divinylbenzene copolymer backbone that contain acidic or basic functional groups and have the ability to exchange counter ions with the surrounding aqueous solutions. From the past many years they have been widely used for purification and softening of water and in chromatographic columns, however recently their use in pharmaceutical industry has gained considerable importance. Due to the physical stability and inert nature of the resins, they can be used as a versatile vehicle to design several modified release dosage forms The ionizable drug is complexed with the resin owing to the property of ion exchange. This resin complex dissociatesin vivo to release the drug. Based on the dissociation strength of the drug from the drug resin complex, various release patterns can be achieved. Many formulation glitches can be circumvented using ion exchange resins such as bitter taste and deliquescence. These resins also aid in enhancing disintegrationand stability of formulation. This review focuses on different types of ion exchange resins, their preparation methods, chemistry, properties, incompatibilities and their application in various oral drug delivery systems as well as highlighting their use as therapeutic agents.

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