High-molecular-weight insoluble polymers that contain functional cationic groups capable of undergoing exchange reactions with anions.
High molecular weight, insoluble polymers which contain functional groups that are capable of undergoing exchange reactions (ION EXCHANGE) with either cations or anions.
High molecular weight insoluble polymers which contain functional anionic groups that are capable of undergoing exchange reactions with cations.
A chlorinated epoxy compound used as an industrial solvent. It is a strong skin irritant and carcinogen.
Polymers of high molecular weight which at some stage are capable of being molded and then harden to form useful components.
A histamine H1 antagonist used as an antiemetic, antitussive, for dermatoses and pruritus, for hypersensitivity reactions, as a hypnotic, an antiparkinson, and as an ingredient in common cold preparations. It has some undesired antimuscarinic and sedative effects.
Negatively charged atoms, radicals or groups of atoms which travel to the anode or positive pole during electrolysis.
Separation technique in which the stationary phase consists of ion exchange resins. The resins contain loosely held small ions that easily exchange places with other small ions of like charge present in solutions washed over the resins.
A plant species of the genus PINUS that contains isocupressic acid.
Polymerized forms of styrene used as a biocompatible material, especially in dentistry. They are thermoplastic and are used as insulators, for injection molding and casting, as sheets, plates, rods, rigid forms and beads.
Flammable, amorphous, vegetable products of secretion or disintegration, usually formed in special cavities of plants. They are generally insoluble in water and soluble in alcohol, carbon tetrachloride, ether, or volatile oils. They are fusible and have a conchoidal fracture. They are the oxidation or polymerization products of the terpenes, and are mixtures of aromatic acids and esters. Most are soft and sticky, but harden after exposure to cold. (From Grant & Hackh's Chemical Dictionary, 5th ed & Dorland, 28th ed)
Synthetic resins, containing an inert filler, that are widely used in dentistry.
Acrylic resins, also known as polymethyl methacrylate (PMMA), are a type of synthetic resin formed from polymerized methyl methacrylate monomers, used in various medical applications such as dental restorations, orthopedic implants, and ophthalmic lenses due to their biocompatibility, durability, and transparency.

Modification of chitosan to improve its hypocholesterolemic capacity. (1/88)

Cholestyramine is the most widely used bile acid sequestrant in the treatment of hypercholesterolemia. However, cholestyramine has unpleasant side effects as a consequence of its hydrophobic backbone. Therefore, high-capacity bile acid sequestering biopolymers with cationic chitosan derivatives were developed, because electrostatic interactions are important for binding with bile acid anions. Dialkylaminoalkylation and reductive amination of chitosan were done to add dialkylaminoalkyl and an additional free amino group at a hydroxyl site in the chitosan backbone respectively and the amino-derivatized chitosan derivatives were quaternized with methyl iodide to produce a cationic polyelectrolyte. The in vitro bile acid binding capacity of the chitosan derivatives in aqueous NaCl was measured by reversed-phase HPLC. The binding capacities of sodium glycocholate (a major bile acid) to chitosan, DEAE-chitosan, quaternized DEAE-chitosan, and cholestyramine were 1.42, 3.12, 4.06, and 2.78 mmol/g resin, respectively. With quaternized DEAE-chitosan, the bile acid binding capacity increased approximately 50% over that of cholestyramine. The bile acid binding capacity of dialkylaminoalkyl chitosan derivatives increased with the number of carbons in the alkyl groups, indicating that hydrophobic interaction is a secondary factor for the sequestration of bile acids.  (+info)

Combined biochemical and electron microscopic analyses reveal the architecture of the mammalian U2 snRNP. (2/88)

The 17S U2 small nuclear ribonucleoprotein particle (snRNP) represents the active form of U2 snRNP that binds to the pre-mRNA during spliceosome assembly. This particle forms by sequential interactions of splicing factors SF3b and SF3a with the 12S U2 snRNP. We have purified SF3b and the 15S U2 snRNP, an intermediate in the assembly pathway, from HeLa cell nuclear extracts and show that SF3b consists of four subunits of 49, 130, 145, and 155 kD. Biochemical analysis indicates that both SF3b and the 12S U2 snRNP are required for the incorporation of SF3a into the 17S U2 snRNP. Nuclease protection studies demonstrate interactions of SF3b with the 5' half of U2 small nuclear RNA, whereas SF3a associates with the 3' portion of the U2 snRNP and possibly also interacts with SF3b. Electron microscopy of the 15S U2 snRNP shows that it consists of two domains in which the characteristic features of isolated SF3b and the 12S U2 snRNP are conserved. Comparison to the two-domain structure of the 17S U2 snRNP corroborates the biochemical results in that binding of SF3a contributes to an increase in size of the 12S U2 domain and possibly induces a structural change in the SF3b domain.  (+info)

Separation of nucleotide oligomers by unitary anion-exchange. (3/88)

This paper is the first report on the retention behavior of synthetic oligonucleotides and nucleotide oligomers on a continuous-bedmatrix, strong-anion-exchange column. The separation mechanism is predominantly an anion-exchange process, but hydrophobic interaction plays a role as well. The separation is based on the chain length of the oligonucleotide. Both the addition of organic mobile phase modifiers and changes in column temperature affect the retention of oligomers significantly. A volatile buffer system (e.g., triethylamine acetate) could be employed to purify oligonucleotides, and no desalting procedure would be required after the column separation step. The recoveries from the separation are 70% or higher. The maximum loading capacity of an analytical column (35 x 7-mm i.d.) was found to be more than 366 micrograms.  (+info)

Quantitation of intracellular triphosphate of emtricitabine in peripheral blood mononuclear cells from human immunodeficiency virus-infected patients. (4/88)

An analytical methodology combining solid-phase extraction (SPE) and high-performance liquid chromatography (HPLC) was developed to quantitate the intracellular active 5'-triphosphate (TP) of beta-L-2',3'-dideoxy-5-fluoro-3'-thiacytidine (emtricitabine) (FTC) in human peripheral blood mononuclear cells (PBMCs). The FTC nucleotides, including 5'-mono-, di-, and triphosphates, were successively resolved on an anion-exchange SPE cartridge by applying a gradient of potassium chloride. The FTC-TP was subsequently digested to release the parent nucleoside that was finally analyzed by HPLC with UV detection (HPLC-UV). Validation of the methodology was performed by using PBMCs from healthy donors exposed to an isotopic solution of [(3)H]FTC with known specific activity, leading to the formation of intracellular FTC-TP that was quantitated by an anion-exchange HPLC method with radioactive detection. These levels of FTC-TP served as reference values and were used to validate the data obtained by HPLC-UV. The assay had a limit of quantitation of 4. 0 pmol of FTC-TP (amount on column from approximately 10(7) cells). Intra-assay precision (coefficient of variation percentage of repeated measurement) and accuracy (percentage deviation of the nominal reference value), estimated by using quality control samples at 16.2, 60.7, and 121.5 pmol, ranged from 1.3 to 3.3% and -1.0 to 4. 8%, respectively. Interassay precision and accuracy varied from 3.0 to 10.2% and from 2.5 to 6.7%, respectively. This methodology was successfully applied to the determination of FTC-TP in PBMCs of patients infected with human immunodeficiency virus after oral administration of various dosing regimens of FTC monotherapy.  (+info)

The use of histological techniques for the demonstration of ion exchange resins. (5/88)

AIM: To establish the staining characteristics of certain ion exchange resins in histological material, with a view to enabling confident differential identification. METHODS: Various histological staining procedures were applied to selected pathological material and prepared agar blocks containing the cation exchange resin calcium polystyrene sulphonate and the anion exchange resin cholestyramine. RESULTS: Calcium polystyrene sulphonate uniquely stained strongly by a direct Schiff's reagent procedure without any preoxidation and by the Ziehl-Neelsen method. Cholestyramine was negative by the former method but stained strongly with a standard Congo red technique. CONCLUSIONS: These staining results are consistent with the known structure and properties of polystyrene sulphonate and cholestyramine resins. Polystyrene sulphonate resins have the virtually pathognomonic feature of direct Schiff positivity, while morphology, location, and strong non-birefringent Congo red positivity facilitate the identification of cholestyramine. It is possible that the intrinsic staining characteristics of cholestyramine may be lost once it has bound to its target.  (+info)

An analytical system for rapid separation of tissue nucleotides at low pressures on conventional anion exchangers. (6/88)

An analytical anion-exchange procedure has been developed for the rapid separation of acid-soluble nucleotides (the so-called "free" or tissue nucleotides). It permits assay at low pressures (275-415 kPa; 40-60 psi) in less than 1 h on 10-cm columns of Aminex resins (conventional styrene-type anion exchangers) with alkaline citrate solutions as the eluent. Separation variables have been investigated, to determine optimum conditions for the routine analysis of samples containing tissue nucleotides. Also described here is a simple solvent-extraction procedure for removing HCIO4 or CCI3CO2H quantitatively from cell extracts that contain acid-soluble nucleotides: they are removed from aqueous acid solutions with a water-insoluble amine dissolved in a water-immiscible solvent.  (+info)

Analysis of the physicochemical interactions between Clostridium difficile toxins and cholestyramine using liquid chromatography with post-column derivatization. (7/88)

A potential therapy for antibiotic-associated pseudomembranous colitis is to bind Clostridium difficile toxins A and B using cholestyramine, a hydrophobic anion exchange medium. Frontal analysis in isotonic phosphate buffer was studied using post-column derivatization with o-phthalaldehyde, which gave a highly sensitive (> or =30 ng) flow-through analysis. Following load (1.5-3.0 microg toxin/3.6 mg), toxin A was bound at a slightly higher capacity than B, due to slower kinetics. A salt gradient eluted roughly 20% of bound toxin A with 0.6 M NaCl and toxin B with 1.1 M NaCl, hence toxin A showed weaker electrostatic affinity. The remainder of toxin A (65%) and some of toxin B (10% out of 50%) were eluted using a subsequent gradient to 60% acetonitrile in normal saline, which measured predominantly hydrophobic binding. Low and high affinity populations of both toxins were observed. Glycocholic acid or amino acids were competitive binders, although these components had little effect on the toxin A population bound primarily through ionic interactions. Competitive protein constituents in hamster cecal contents were also profiled. These results help to explain the variable clinical response in using cholestyramine to treat colitis. Using quaternary amine-polyhydroxymethacrylate (PHM) ion exchange chromatography, a trend for increased binding at higher pH was observed, especially for toxin A. Binding to strong cation exchange resins (sulfonate-PHM) was not observed. A range of reversed phase media retained both toxins, although recovery was very poor relative to protein standards. Size exclusion chromatography with light scattering detection showed that toxin B exists in different aggregation states, while toxin A remains monomeric.  (+info)

Liquid-chromatographic analysis for neutral carbohydrates in serum glycoproteins. (8/88)

We describe a sensitive, reproducible procedure of analysis for the six neutral carbohydrates in glycoproteins, by high-resolution anion-exchange chromatography. As many as 16 neutral carbohydrates can be separated by elution with a concentration gradient of boric acid (pH 7, 67 to 672 mmol/liter). The carbohydrates are detected with a cerate oxidimetric detector system, which monitors the fluorescence of Ce3+ produced by the reaction of the eluted constituents with Ce4+. Sensitivity to 1 nmol of fucose is demonstrated. Analytical methods and results are presented for mannose, fucose, and galactose in serum glycoproteins for both normal women and those with metastatic breast cancer. We briefly discuss the possibility of separating and analyzing for the three neutral carbohydrates in serum glycoproteins in 4 h by isocratic (constant eluent concentration) elution from a chromatographic column.  (+info)

Anion exchange resins are a type of ion exchange resin that are positively charged and used to remove anions (negatively charged ions) from aqueous solutions. These resins contain functional groups such as quaternary ammonium or tertiary amine groups, which can attract and retain anions like chloride, sulfate, or nitrate ions.

Anion exchange resins are commonly used in water treatment to remove excess dissolved salts, heavy metals, and other impurities from drinking water, industrial wastewater, and process water. They can also be used in the pharmaceutical industry for the purification of drugs and biomolecules, as well as in research and analytical applications.

When anions come into contact with the resin, they are attracted to the positively charged functional groups and exchanged for hydroxide ions (OH-) present on the resin surface. This exchange results in the formation of water and the release of the anion from the resin. The resin can then be regenerated by washing it with a strong base, which replaces the hydroxide ions and restores its ability to exchange anions.

Overall, anion exchange resins are important tools for removing unwanted anions from various types of solutions, including water, biological samples, and industrial process streams.

Ion exchange resins are insoluble, cross-linked polymeric materials that contain functional groups which can exchange ions with surrounding solutions. These resins are typically used in water treatment and purification processes to remove unwanted dissolved ions, molecules, or gases. They operate through the principle of ion exchange, where ions held on the resin are exchanged for ions in the solution. The process can be used to soften water, remove heavy metals, treat wastewater, and deionize water, among other applications.

The resins consist of a three-dimensional network of cross-linked polymer chains, providing a large surface area for ion exchange. They are often made from styrene and divinylbenzene monomers, which form a rigid structure that can withstand repeated ion exchange cycles without losing its shape or functionality. The functional groups on the resins can be cationic (positively charged) or anionic (negatively charged), allowing them to attract and retain ions of opposite charge from the surrounding solution.

Cation exchange resins are used to remove positively charged ions, such as calcium, magnesium, sodium, and potassium, while anion exchange resins are used to remove negatively charged ions, such as chloride, sulfate, nitrate, and bicarbonate. The resins can be regenerated by washing them with a strong solution of the ion to be recovered, allowing them to be reused multiple times before they need to be replaced.

Cation exchange resins are a type of ion exchange resin that are positively charged and used to remove cations (positively charged ions) from aqueous solutions. They are often used in water treatment to soften water by removing calcium and magnesium ions, which can cause scale buildup in pipes and appliances. Cation exchange resins can also be used to remove heavy metals and other contaminants from water.

The resin itself is typically made of a cross-linked polymer matrix, such as polystyrene or polyacrylate, which contains functional groups that give the resin its ion exchange properties. The most common type of cation exchange resin is the sulfonated styrene divinylbenzene copolymer (SSDVB), in which the functional group is a sulfonic acid (-SO3H) group. When this resin comes into contact with a solution containing cations, such as a water supply, the cations in the solution will replace the hydrogen ions on the resin, causing the resin to become positively charged and the solution to become deionized.

Cation exchange resins can be regenerated by washing them with a strong acid, which replaces the captured cations with hydrogen ions, allowing the resin to be reused. The regeneration process must be done carefully to avoid damaging the resin and to ensure that it is properly rinsed of any residual acid before being put back into service.

Cation exchange resins are widely used in various industries such as pharmaceuticals, food and beverage, power generation, chemical processing and metal finishing for purification of water and wastewater treatment.

Epichlorohydrin is an industrial chemical with the formula C3H5ClO. It is a colorless liquid with an irritating odor, and it is used primarily as a building block in the production of other chemicals, including epoxy resins, synthetic gums, and plastics. Epichlorohydrin is produced by reacting chlorine with propylene in the presence of a catalyst. It is classified as a probable human carcinogen based on evidence from animal studies, and exposure to this chemical can cause irritation of the eyes, skin, and respiratory tract. Therefore, it is important to handle epichlorohydrin with care and to use appropriate safety measures when working with this chemical.

Synthetic resins are artificially produced substances that have properties similar to natural resins. They are typically created through polymerization, a process in which small molecules called monomers chemically bind together to form larger, more complex structures known as polymers.

Synthetic resins can be classified into several categories based on their chemical composition and properties, including:

1. Thermosetting resins: These resins undergo a chemical reaction when heated, resulting in a rigid and infusible material that cannot be melted or reformed once it has cured. Examples include epoxy, phenolic, and unsaturated polyester resins.

2. Thermoplastic resins: These resins can be repeatedly softened and hardened by heating and cooling without undergoing any significant chemical changes. Examples include polyethylene, polypropylene, and polystyrene.

3. Elastomeric resins: These resins have the ability to stretch and return to their original shape when released, making them ideal for use in applications that require flexibility and durability. Examples include natural rubber, silicone rubber, and polyurethane.

Synthetic resins are widely used in various industries, including construction, automotive, electronics, and healthcare. In the medical field, they may be used to create dental restorations, medical devices, and drug delivery systems, among other applications.

Diphenhydramine is an antihistamine medication used to relieve symptoms of allergies, such as sneezing, runny nose, and itchy or watery eyes. It works by blocking the action of histamine, a substance in the body that causes allergic reactions. Diphenhydramine can also be used to treat motion sickness, insomnia, and symptoms of the common cold.

In addition to its antihistamine effects, diphenhydramine also has anticholinergic properties, which means it can help to reduce secretions in the nose and throat, and may have a drying effect on the mouth and eyes. It is available over-the-counter in various forms, including tablets, capsules, liquid, and topical creams or ointments.

It's important to note that diphenhydramine can cause drowsiness, so it should be used with caution when operating heavy machinery or driving a vehicle. It may also interact with other medications, so it's important to speak with a healthcare provider before taking this medication.

An anion is an ion that has a negative electrical charge because it has more electrons than protons. The term "anion" is derived from the Greek word "anion," which means "to go up" or "to move upward." This name reflects the fact that anions are attracted to positively charged electrodes, or anodes, and will move toward them during electrolysis.

Anions can be formed when a neutral atom or molecule gains one or more extra electrons. For example, if a chlorine atom gains an electron, it becomes a chloride anion (Cl-). Anions are important in many chemical reactions and processes, including the conduction of electricity through solutions and the formation of salts.

In medicine, anions may be relevant in certain physiological processes, such as acid-base balance. For example, the concentration of anions such as bicarbonate (HCO3-) and chloride (Cl-) in the blood can affect the pH of the body fluids and help maintain normal acid-base balance. Abnormal levels of anions may indicate the presence of certain medical conditions, such as metabolic acidosis or alkalosis.

Ion exchange chromatography is a type of chromatography technique used to separate and analyze charged molecules (ions) based on their ability to exchange bound ions in a solid resin or gel with ions of similar charge in the mobile phase. The stationary phase, often called an ion exchanger, contains fixed ated functional groups that can attract counter-ions of opposite charge from the sample mixture.

In this technique, the sample is loaded onto an ion exchange column containing the charged resin or gel. As the sample moves through the column, ions in the sample compete for binding sites on the stationary phase with ions already present in the column. The ions that bind most strongly to the stationary phase will elute (come off) slower than those that bind more weakly.

Ion exchange chromatography can be performed using either cation exchangers, which exchange positive ions (cations), or anion exchangers, which exchange negative ions (anions). The pH and ionic strength of the mobile phase can be adjusted to control the binding and elution of specific ions.

Ion exchange chromatography is widely used in various applications such as water treatment, protein purification, and chemical analysis.

I apologize for any confusion, but "Pinus ponderosa" is not a medical term. It is the scientific name for a species of pine tree commonly known as the western yellow pine or ponderosa pine. This tree is native to North America and is one of the most widely distributed pine species in the continent.

Here's a brief overview of its botanical characteristics:

Kingdom: Plantae
Division: Pinophyta
Class: Pinopsida
Order: Pinales
Family: Pinaceae
Genus: Pinus
Species: P. ponderosa

The ponderosa pine is a large evergreen tree, reaching heights of 150-250 feet (46-76 meters) tall and trunk diameters up to 8 feet (2.4 meters). Its needle-like leaves are grouped in bundles of three, and its cones are long and slender, typically 3-6 inches (7.6-15.2 cm) in length.

If you have any questions related to medical terminology or healthcare topics, please feel free to provide them, and I'd be happy to help.

I'm sorry for any confusion, but "Polystyrenes" is not a medical term. Polystyrene is a type of synthetic aromatic hydrocarbon polymer that is used in a variety of commercial and industrial products, such as packaging materials, insulation, and disposable cutlery. It's important to note that some polystyrene products may contain potentially harmful chemicals, such as styrene, which can leach out into food or drink, posing potential health risks. However, the medical community primarily deals with the health effects of exposure to these chemicals rather than defining the material itself.

In a medical context, "resins, plant" refer to the sticky, often aromatic substances produced by certain plants. These resins are typically composed of a mixture of volatile oils, terpenes, and rosin acids. They may be present in various parts of the plant, including leaves, stems, and roots, and are often found in specialized structures such as glands or ducts.

Plant resins have been used for centuries in traditional medicine and other applications. Some resins have antimicrobial, anti-inflammatory, or analgesic properties and have been used to treat a variety of ailments, including skin conditions, respiratory infections, and pain.

Examples of plant resins with medicinal uses include:

* Frankincense (Boswellia spp.) resin has been used in traditional medicine to treat inflammation, arthritis, and asthma.
* Myrrh (Commiphora spp.) resin has been used as an antiseptic, astringent, and anti-inflammatory agent.
* Pine resin has been used topically for its antimicrobial and anti-inflammatory properties.

It's important to note that while some plant resins have demonstrated medicinal benefits, they should be used with caution and under the guidance of a healthcare professional. Some resins can have adverse effects or interact with medications, and it's essential to ensure their safe and effective use.

Composite resins, also known as dental composites or filling materials, are a type of restorative material used in dentistry to restore the function, integrity, and morphology of missing tooth structure. They are called composite resins because they are composed of a combination of materials, including a resin matrix (usually made of bisphenol A-glycidyl methacrylate or urethane dimethacrylate) and filler particles (commonly made of silica, quartz, or glass).

The composite resins are widely used in modern dentistry due to their excellent esthetic properties, ease of handling, and ability to bond directly to tooth structure. They can be used for a variety of restorative procedures, including direct and indirect fillings, veneers, inlays, onlays, and crowns.

Composite resins are available in various shades and opacities, allowing dentists to match the color and translucency of natural teeth closely. They also have good wear resistance, strength, and durability, making them a popular choice for both anterior and posterior restorations. However, composite resins may be prone to staining over time and may require more frequent replacement compared to other types of restorative materials.

Acrylic resins are a type of synthetic polymer made from methacrylate monomers. They are widely used in various industrial, commercial, and medical applications due to their unique properties such as transparency, durability, resistance to breakage, and ease of coloring or molding. In the medical field, acrylic resins are often used to make dental restorations like false teeth and fillings, medical devices like intraocular lenses, and surgical instruments. They can also be found in orthopedic implants, bone cement, and other medical-grade plastics. Acrylic resins are biocompatible, meaning they do not typically cause adverse reactions when in contact with living tissue. However, they may release small amounts of potentially toxic chemicals over time, so their long-term safety in certain applications is still a subject of ongoing research.

... which are negatively charged anions. Anion-exchange resins relieve itching caused by excess bile acids in circulation by ... These anion-exchange resins are nonabsorbed, highly positively charged substances that bind bile acids, ... Bloating or constipation may occur with anion-exchange resins. Cholestyramine may affect absorption of UDCA; if cholestyramine ... Treatment options for pruritus that does not improve with anion-exchange resins include: rifampicin, naltrexone, or sertraline ...
44Ti is adsorbed onto column filled with anion-exchange resin. 44Sc is eluted with 20 mL of 0.005M H2C2O4/0.07M HCl solution. ... The eluate is directly post-processed on miniaturized column filled with cation-exchange resin where 44Sc is quantitatively ...
"Chromatographic Enrichment of 10B by Using Weak-Base Anion-Exchange Resin". Separation Science and Technology. 21 (6): 643-654 ... Strong bases do not deprotonate a borohydride R2BH to the boryl anion R2B−, instead forming the octet-complete adduct R2HB-base ... A typical motif is exemplified by the tetraborate anions of the common mineral borax, shown at left. The formal negative charge ... For example, fluoride (F−) and boron trifluoride (BF3) combined to give the tetrafluoroborate anion, BF4−. Boron trifluoride is ...
Further, NDMA can form or be leached during treatment of water by anion exchange resins. Contamination of drinking water with ...
... s are polymeric compounds that serve as ion-exchange resins. Bile acid sequestrants exchange anions such ... The bile acid sequestrants are a group of resins used to bind certain components of bile in the gastrointestinal tract. They ... The bile-acid-binding resins can raise triglycerides modestly (about 5%) and cannot be used if the triglycerides are elevated. ... Three drugs are members of this class; all are synthetic polymeric resins: Cholestyramine (generic and various propriety names ...
... through cation or anion exchange membranes, into concentrating chambers. Ion exchange: In this stage, ion exchange resin fills ... CO2 must be monitored to prevent excessive loading of anion exchange resin. TOC, which can foul resins and membranes, must be ... Only anions can go through the anion exchange membrane, and only cations can go through the cation exchange membrane. This ... anion exchange membranes, cation exchange membranes, and resin. The most simplified configuration comprises three compartments ...
Anion resins and cation resins are the two most common resins used in the ion-exchange process. While anion resins attract ... An ion-exchange resin or ion-exchange polymer is a resin or polymer that acts as a medium for ion exchange. It is an insoluble ... in the process cation and anion exchange resins are used to remove dissolved ions from the water. Few ion-exchange resins ... This, combined with a high rate of ion exchange, make weakly base anion resins well suited for the organic salts. For anion ...
Positively charged molecules bind to cation exchange resins, while negatively charged molecules bind to anion exchange resins. ... "Anion-Exchange Chromatography of Phosphopeptides: Weak Anion Exchange versus Strong Anion Exchange and Anion-Exchange ... 6 arginines for binding to a cation-exchange resin or 6 glutamates for binding to an anion-exchange resin such as DEAE- ... The two types of ion chromatography are anion-exchange and cation-exchange. Cation-exchange chromatography is used when the ...
The nanoparticles are produced by adding base anion exchange resin to gadolinium(III) nitrate. Logvinenko, V.; Bakovets, V.; ... "Fabrication of gadolinium hydroxide nanoparticles using ion-exchange resin and their MRI property". Journal of Asian Ceramic ...
A dealkalizer contains strong base anion exchange resin that exchanges chloride (the Cl- ion of the NaCl) for carbonate (CO− 3 ... In the case of a water softener, the cation exchange resin is exchanging sodium (the Na+ ion of NaCl) for hardness minerals ... As water passes through the anion resin the carbonate, bicarbonate and sulfate ions are exchanged for chloride ions. "Higher ... Chloride cycle anion ion-exchange dealkalizers remove alkalinity from water. Chloride cycle dealkalizers operate similar to ...
Correspondingly, anion-exchange resins are typically provided in the form of chloride Cl−, which is a highly mobile ... Ion-exchange resins are polymers with a net negative or positive charge. Cation-exchange resins consist of an anionic polymer ... Depending on their charge, proteins are associated with a variety of smaller anions and cations. In plant cells, the anion ... The solubility of cations in organic solvents can be enhanced when the anion is lipophilic. Similarly, the solubility of anions ...
"The determination of thyroxine by competitive protein-binding analysis employing an anion-exchange resin and radiothyroxine". ...
This exchange is utilized to separate proteins that have faintly differing charges. Like all anion exchangers, the resin ... "Whatman® anion exchange cellulose DE52". Sigma-Aldrich. Retrieved 11 May 2016. Reuveny, S.; Silberstein, L.; Shahar, A.; ... Diethylaminoethyl cellulose (DEAE-C) is a positively charged resin used in ion-exchange chromatography, a type of column ... The resin is a weak exchanger because it is only partially ionized over most pH values, and an efficient separation with DEAE-C ...
Alkali anion exchange membrane Ion Ion chromatography Ion-exchange membranes Ion-exchange resin Desalination Reverse osmosis ... which contain a mixture of anion- and cation-exchange resins, or passing the solution through several different ion-exchange ... Thus, ion-exchange is used in nuclear reprocessing and the treatment of radioactive waste. Ion-exchange resins in the form of ... Most ion-exchange systems use columns of ion-exchange resin that are operated on a cyclic basis. During the filtration process ...
... such as ion-exchange resins. Anion-exchange membranes contain fixed cationic groups with predominantly mobile anions; because ... and the anion exchange membranes used in certain alkaline fuel cells to transport OH− anions. An ion-exchange membrane is ... anions are the majority species, most of the conductivity is due to anion transport. The reverse holds for cation-exchange ... When applied in an electrodialysis desalination process, anion- and cation-exchange membranes are typically arranged in an ...
Traditional anion exchange resins are effective in removing As(V), but not As(III), or arsenic trioxide, which doesn't have a ... Ion exchange and activated alumina have been considered but not commonly used. Chaff-based filters have been reported to reduce ... Ion exchange has long been used as a water softening process, although usually on a single-home basis. ... Effective long-term ion exchange removal of arsenic requires a trained operator to maintain the column. Both reverse osmosis ...
It is a strong ion exchange resin, which means it can exchange its chloride anions with anionic bile acids in the ... The functional group of the anion exchange resin is a quaternary ammonium group attached to an inert styrene-divinylbenzene ... gastrointestinal tract and bind them strongly in the resin matrix. ...
Mixed bed deionization is a 40/60 mixture of cation and anion resin combined in a single ion-exchange column. With proper ... A control system operates pumps and valves for the regenerants of spent anions and cations resins within the ion exchange ... Deionization is a chemical process that uses specially manufactured ion-exchange resins, which exchange hydrogen and hydroxide ... except by incidental trapping in the resin. Specially made strong base anion resins can remove Gram-negative bacteria. ...
It is usually followed by anion-exchange chromatography using 6 molar HCl as eluant. A cation-exchange resin column (Dowex-50 ... Separation of trivalent actinides from lanthanide fission products can be done by a cation-exchange resin column using a 90% ... The actinide elution sequence is reversed from that of the cation-exchange resin column. The einsteinium separated by this ... In this case, isolation of einsteinium is a tedious procedure which involves several repeating steps of cation exchange, at ...
The anionic actinide complexes are retained by anion exchange sites that are on the resin and neutral species pass through the ... typically by changing the mobile phase passed through the resin bed. Anion exchange-based separations of actinides, while ... Anion exchange separation methods are widely used in the purification of actinides and actinide bearing materials through the ...
... was awarded to Arup K Sengupta for his invention and implementation of ArsenXnp hybrid anion exchange (HAIX) resin. The ...
The plant comprises three groups of cation, anion and mixed bed ion exchange resin units, together with vacuum degassing and ...
... and anion-cation exchange resin columns. Sulfolane is also added to hydrofluoric acid as a vapor suppressant, commonly for use ...
... macroreticular anion exchange resin over a 2-year period.: 45 Gas centrifuge, laser isotopic separation and gas diffusion ... Kawakami, Fumiaki (September 1, 2011). "Plant designing of ion exchange chemical uranium enrichment and its non-proliferation ...
... resins, and liquid organics impregnated with chelating agents are all used to exchange cations or anions with the solution.[ ... Solvent Extraction Ion exchange Gas reduction. Treating a solution of nickel and ammonia with hydrogen affords nickel metal as ... The metal will be exchanged from the organic to the electrolyte. The resulting streams will be a stripped organic and a rich ... Tasker, Peter A.; Tong, Christine C.; Westra, Arjan N. (2007). "Co-extraction of cations and anions in base metal recovery". ...
... readily measurable species to be released by a spent anion exchange resin and is therefore used as the trigger for anion resin ... The conductivity of cation exchange effluent is always quite high due to the presence of anions and hydrogen ion and therefore ... The anion analysis for seven most common inorganic anions (sulfate, chloride, fluoride, phosphate, nitrite, nitrate, and ... polishing by ion exchange resins or electrodeionization (EDI), and finally filtration or ultrafiltration. Some systems use ...
There are two types of ion exchange chromatography: Cation-Exchange and Anion-Exchange. In the Cation-Exchange Chromatography ... In conventional methods the stationary phase is an ion-exchange resin that carries charged functional groups that interact with ... in the Anion-Exchange Chromatography the stationary phase has positive charge and the exchangeable ion is an anion. Ion ... Ion exchange chromatography uses a charged stationary phase to separate charged compounds including anions, cations, amino ...
... ligand-exchange chromatography, ion-exchange chromatography of proteins, high-pH anion-exchange chromatography of carbohydrates ... Polystyrene resins allow cross linkage, which increases the stability of the chain. Higher cross linkage reduces swerving, ... A decrease in pH reduces the retention time in cation exchange while an increase in pH reduces the retention time in anion ... Ion-exchange chromatography (IEC) or Ion chromatography (IC) is an analytical technique for the separation and determination of ...
SpyDock can be expressed in E. coli as soluble protein, purified using Ni-NTA and anion-exchange resins and immobilized to ... SpyDock-bound proteins are eluted by incubating the resin with 2.5 M imidazole in neutral buffer. The SpyDock resin can be ... SpyDock resin is compatible with all SpyTag generations (SpyTag, SpyTag002, SpyTag003) and it does not interfere with the later ... Non-specifically bound proteins are removed by washing the resin with a neutral buffer and the target protein eluted at neutral ...
... who would use aqua regia to dissolve it and pass it through an anion-exchange resin column to separate out the transuranium ... The actinide elution sequence is reversed from that of the cation-exchange resin column, so that the heavier actinides elute ... There Thompson and Choppin used a cation-exchange resin column and the α-hydroxyisobutyric acid. The solution drops were ... Mendelevium can finally be separated from the other trivalent actinides using selective elution from a cation-exchange resin ...
In the present work, we study an application of SMBR to transesterification synthesis using anion exchange resin as a catalyst ... PMA glycol ether acetate using an anion exchange resin. In this presentation, a case study of process development for the ester ... and Design of Reactive Chromatography for the Synthesis of Propylene Glycol Methyl Ether Acetate with Anion Exchange Resin. ... It is very efficient at dissolving resins used in paints, inks, lacquers, and other types of surface coatings such as in ...
Anion Exchange Resins / therapeutic use * Anticholesteremic Agents / therapeutic use * Atherosclerosis / pathology * ...
Anion exchange resins. Class Summary. Diarrhea in patients with LC and possible bile salt malabsorption may respond to exchange ... Pentasa is ethylcellulose-coated 5-ASA coated with an acrylic-based resin that dissolves in neutral or alkaline pH found in the ...
... which are negatively charged anions. Anion-exchange resins relieve itching caused by excess bile acids in circulation by ... These anion-exchange resins are nonabsorbed, highly positively charged substances that bind bile acids, ... Bloating or constipation may occur with anion-exchange resins. Cholestyramine may affect absorption of UDCA; if cholestyramine ... Treatment options for pruritus that does not improve with anion-exchange resins include: rifampicin, naltrexone, or sertraline ...
Detection of Viruses from Bioaerosols Using Anion Exchange Resin ... of Viruses from Bioaerosols Using Anion Exchange Resin. Joshua ...
... by using the anion exchange resin. For MS2, the anion exchange resin method allowed for an average improvement in detection of ... Here, we adapted an anion exchange resin-based method, initially developed to concentrate negatively charged viruses from water ... and further concentrated via adsorption to an anion exchange resin that is suspended within this liquid. Viral nucleic acids ... and sampled using BioSamplers with and without anion exchange resin. Compared to direct testing of the BioSampler liquid, ...
A maximum interval of three days between regenerations is a reasonable compromise between the degree of fouling of the resin ... These organo-ferric compounds can be removed by an anion-ion exchange resin. ... Cleaning organically fouled cation resins. Cation exchange resins can accumulate organic compounds. This is a rare problem in ... However, these compounds in high concentrations can accumulate and foul cation exchange resins. Resins fouled with the organic ...
Background: Normal anion gap metabolic acidosis is a common but often misdiagnosed clinical condition associated with diarrhea ... Cholestyramine is a nonabsorbable anion exchange resin used to bind bile acids in the gut. It has been used in the treatment of ... Sadjadi SA, Manalo R, Jaipaul N, McMillan J: Ion-selective electrode and anion gap range: What should the anion gap be? Int J ... This is due to the increased delivery of Na+ and HCO3- to the distal nephron, where Na+/K+ exchange occurs. Also, volume ...
Methylmalonic acid (MMA) is extracted from plasma along with an added internal standard using an anion exchange resin. The ...
Cholestyramine is a nonabsorbable anion exchange resin that selectively binds bile salts, fatty acids, and intestinal oxalate. ... In the kidney, oxalate is secreted in the proximal tubule via 2 separate carriers involving sodium and chloride exchange. ... Because chloride is released from the resin, hyperchloremic acidosis is a potential complication. Cholestyramine interferes ...
... such as anion exchange. Accordingly, repeated resin use for those chromatography types requires equivalent in-house experience ... some flexibility on these requirements for well-known chromatography media such as protein A affinity and anion-exchange resins ... That has been acknowledged by regulatory authorities (14), but now it is stated explicitly in ICH Q5A(R2). Resin life has been ... Chromatography media/resin lifetime use should be established, and CPPs that affect viral clearance should be defined. Since ...
... from which anions are subsequently removed using e.g. anion exchange resins (D3: claims 1, 8 and 14; page 3, lines 39 to 56). ... B and C of D2 describe the removal of anions from the sol obtained according to example A using an anion exchange resin. Both ... In document D3, the focus lies, one the one hand, on the stability of the sol, which is achieved by the removing anions, such ... The board considers that document D3 encourages the skilled person to perform a far-reaching removal of the chloride anions (as ...
Ionic Equilibria and Anion Exchange of Uranyl Sulfate Solutions Description: Theoretical investigation on the nature of ion ... exchange of acidified uranyl sulfate solutions with Dowex 21K, a strong base ion exchange resin. ...
Passive detection of phosphorus in agricultural tile water using reactive hybrid anion exchange resins. Water, 12, 2808. https ...
Ion exchange resins,/strong,,br, Anion exchange resins can be prepared by reacting tertiary amines like DMAE or trimethylamine ... The anion exchange membranes are aminated with DMAE.,br, ,/p, ,p,,strong,Polyurethane,/strong,,br, In the production of PU foam ... Resins,/strong,,/p, ,ul, ,li,Epoxy,br, DMAE is an effective and versatile curing agent for epoxy resins. It also acts as ... DMAE is excellent for neutralising free acidity in water-soluble coating resins. The resin can be acrylic, alkyd or styrene- ...
Garretson compared prepacked columns to disposable membrane absorbers, which can be used in place of anion exchange ... "The resin has the same sort of mass transfer profile as a membrane absorber," said Garretson. Once users have selected the ... The high mass transfer capability of the POROS prepacked resin allows for high flow rates, short bed lengths, and small column ... In terms of single-use capability, the prepacked chromatography resin, like a traditional self-packed column, can be re-used ...
Comparison of Dowex AG1-X8 and Poros XQ Anion Exchange Resins for 72Se/72As Generator Development ... Determination of Distribution Coefficients of Mercury and Gold on Selected Extraction Chromatographic Resins ...
... were both immobilized on the anion-exchange resins in the flow injection system. Through water injection, luminol and periodate ... were eluted from the anion-exchange column to generate the chemiluminescence, which was inhibited in the presence of lysozyme. ...
We are inventing the best Ion Exchange Resins for A Better World. Rooted in China, serving the world! ... Resin Technology specializes in the manufacture and service of ion exchange resins for the global marketplace. ... Felite offers SBA resins that can remove strong base anions and WBA resins that effectively remove weak base anions, from ... Our comprehensive resin portfolio comprises cation, anion, mixed bed, and specialty resins, catering to a diverse range of ...
Anion Exchange Resin. *Switchable Surface Charge. *Biotechnology. Purity Process Outlook (Revenue, USD Million; 2018-2026) ...
The composite anionexchange material MOR‐1-HA (metal-organic resin‐1-alginic acid) was investigated as sorbent for the capture ... Selective Capture of Hexavalent Chromium from an Anion-Exchange Column of Metal Organic Resin-Alginic Acid Composite. Chem. Sci ... We report an anion exchange composite material based on a protonated amine-functionalized metal-organic framework, denoted ... The composite prepared by this method can be successfully utilized as a stationary phase, mixed with sand, in an anion-exchange ...
... anion exchange resin. This blend effectively reduces & removes heavy metals, chlorine & chloramine, pesticides & herbicides, ... anion exchange resin. This blend effectively reduces & removes heavy metals, chlorine & chloramine, pesticides & herbicides, ... Contains a special nitrate-selective resin. Nitrate reduction is 90% to 95% and breakthrough is not affected by sulfate levels ... Contains a special nitrate-selective resin. Nitrate reduction is 90% to 95% and breakthrough is not affected by sulfate levels ...
... the sequential steps of passing an aqueous solution of a water soluble calcium salt through a strong base anion exchange resin ... Caustic soda is used extensively in the water industry for pH control and ion exchange resin regeneration. Other uses include ... Caustic soda is used extensively in the water industry for pH control and ion exchange resin regeneration. Other uses include ... of calcium ions substantially free of anions other than hydroxyl to displace the sodium ions on said entrained cation exchange ...
201x7MB Styrene Series Strongly Basic Anion Exchange Resins. 201x7MB is a sort of anion exchange resin that has quaternary ... 001x4 Styrene Series Gel Strong Acid Cation Exchange Resins. This is a kind of cation exchange resin which has sulfonic acid ... 001x7MB Styrene Series Strongly Acidic Cation Exchange Resins. 001x7MB is a sort of cation exchange resin that has sulfonic ... All Categories > Resins > 001×10 Styrene Series Gel Strong Acid Cation Exchange Resins ...
This is associated with dissemination of methods using various ion exchange resins which are indispensable in many fields of ... Ion exchange has been widely applied in technology of chemical separation of noble metal ions. ... and those which exchange anions are called anion exchangers. . Generally, those exchanging ions are called ion exchangers. . ... Anion Exchange Resins as Effective Sorbents for Removal of Acid, Reactive, and Direct Dyes from Textile Wastewaters. By Monika ...
Home Ion Exchange Resin IONLITE Ion Exchange Resin Industry Grade Softener Resin (Ionlite C259IG). ... Industry Grade Softener Resin (Ionlite C259IG). SKU: 19247eadc459 Categories: Ion Exchange Resin, IONLITE Ion Exchange Resin ...
... anion and then returning the resin to service, and the destruction or disposal of perchlorate recovered from the resin. ... the beds become saturated and the exchange resin must be regenerated or recharged. To regenerate, the ion exchange resin is ... Guidelines for Selecting Resin Ion Exchange or Reverse Osmosis for Feed Water Demineralisation Guidelines for Selecting Resin ... Magnetic ion exchange (MIEX) is an ion exchange resin developed as an additive to existing water treatment plants where ...
... separation of Mg from samples is performed using anion and cation exchange resins. The various published technical studies ... are present on the outer surface of the cell walls of the lateral roots and which can be compared to cation exchange resins. An ... Anderson et al., 1989] M.A. Anderson; P.M. Bertsch; W.P. Miller Exchange and apparent fixation of Lithium in selected soils and ... Taylor and Urey, 1938] S.R. Taylor; H.C. Urey Fractionation of the lithium and potassium isotopes by chemical exchange with ...
Ion Exchange brand DM plant. In an ion exchange DM plant, there is anion exchange and cation exchange resin. A cation releases ... which is the ion exchange resin. Cations exchange with hydrogen ions, and then anions exchange with hydroxyl ions in two steps ... It includes iron, copper, calcium, sodium and anions. The process uses ion exchange resin that has an ion exchange site and the ... The ion exchange is a rapid procedure that replaces the impurity ions by releasing ion-exchange resin. So, it is the resin that ...
  • However, these compounds in high concentrations can accumulate and foul cation exchange resins. (watertechonline.com)
  • Cation exchange resins can accumulate organic compounds. (watertechonline.com)
  • Iron and manganese are positively charged cations that are attracted to the cation resin like calcium and magnesium. (watertechonline.com)
  • According to Gamble [ 6 ], electrical neutrality in solution demands that the sum of the cations is equal to the sum of the anions, also represented in a gamblegram (Fig. 1 ). (karger.com)
  • Gamblegram: balance between anions and cations in plasma. (karger.com)
  • Serum AG is affected by the concentrations of all anions and cations which are not included in its calculations: i.e., albumin, globulin, potassium, calcium, magnesium, and organic and inorganic acids. (karger.com)
  • Felite provides both strong acid cation (SAC) resins and weak acid cation (WAC) resins that are capable of removing divalent and trivalent metal ions, as well as monovalent and multivalent cations, including calcium and magnesium, from aqueous solutions through ion exchange processes. (felitecn.com)
  • Ions are either positively charged (cations) or negatively charged (anions). (sswm.info)
  • Positively charged functional groups interact with anions and negatively charged functional groups interact with cations. (sswm.info)
  • Cations exchange with hydrogen ions, and then anions exchange with hydroxyl ions in two steps. (rocareindia.com)
  • The blood pH needs to be constantly between 7.35 and 7.45, and in addition the blood needs to remain electrically neutral, which means that the total cations, or positively charged particles, equals the total anions, or negatively charged particles. (msdmanuals.com)
  • Normal anion gap metabolic acidosis is a common but often misdiagnosed clinical condition associated with diarrhea and renal tubular acidosis (RTA). (karger.com)
  • This review highlights practical aspects concerning normal anion gap metabolic acidosis. (karger.com)
  • So, the first category of metabolic acidosis is a high anion gap metabolic acidosis. (msdmanuals.com)
  • Here, we adapted an anion exchange resin-based method, initially developed to concentrate negatively charged viruses from water, to liquid impingement-based bioaerosol sampling. (cdc.gov)
  • For this study, various quantities of two negatively charged viruses, type A and type B influenza viruses (FluMist Quadrivalent vaccine) and the male-specific (F+) RNA coliphage MS2 (MS2), were nebulized into a custom-built bioaerosolization chamber, and sampled using BioSamplers with and without anion exchange resin. (cdc.gov)
  • Ion exchange has been widely applied in technology of chemical separation of noble metal ions. (intechopen.com)
  • Ion exchange processes can also remove various charged atoms or molecules (ions) such as nitrates, fluoride, sulphates, perchlorate, iron and manganese ions as well as toxic metals (radium, uranium, chromium, etc.) from water. (sswm.info)
  • The ion exchange is a rapid procedure that replaces the impurity ions by releasing ion-exchange resin. (rocareindia.com)
  • So, it is the resin that replaces the impure ions from the water, resulting in high-quality water. (rocareindia.com)
  • The cation exchange resin recovered most of metal ions from aqueous and ethanolic feeds, whereas the anion exchange resin could selectively recover copper and iron from ethanolic feeds. (bvsalud.org)
  • The studies indicate that the formation of chloro complexes of copper and their exchange by the (hydrogen) sulfate counter ions of the resin have an important role in the selective uptake of copper from the 95 vol% ethanolic feed. (bvsalud.org)
  • Now, not all of the ions are easy or convenient to measure, so typically the dominant cation, sodium Na+, which is typically around 137 mEq/L and the two dominant anions, chloride Cl−, which is about 104 mEq/L, and bicarbonate HCO3−, which is around 24 mEq/L, are measured. (msdmanuals.com)
  • Anion exchange resins can be prepared by reacting tertiary amines like DMAE or trimethylamine with the chloromethylated vinyl or styrene resin. (eastman.com)
  • It was proposed adsorptive retention of C.I. Direct Red 23 (DR23), C.I. Direct Orange 26 (DO26) and C.I. Direct Black 22 (DB22) from effluents using anion exchange resin of tertiary amine functionalities Amberlyst A21 (A21). (bvsalud.org)
  • In the present work, we study an application of SMBR to transesterification synthesis using anion exchange resin as a catalyst and adsorbent, which will be a new platform for ester production. (aiche.org)
  • Felite offers macroporous-type catalyst resins and chelating resins that are ideal for applications such as catalysis, metal recovery, and purification. (felitecn.com)
  • Below is a typical resin cleaning procedure using sodium hydrosulfite. (watertechonline.com)
  • Most resin manufacturers recommend a dose rate of sodium hydrosulfite of 1.25 pounds per cubic foot of resin. (watertechonline.com)
  • Prepare a concentrated sodium hydrosulfite solution so that it makes about a 4 percent solution when added to the water volume above the resin. (watertechonline.com)
  • In the kidney, oxalate is secreted in the proximal tubule via 2 separate carriers involving sodium and chloride exchange. (medscape.com)
  • Felite offers SBA resins that can remove strong base anions and WBA resins that effectively remove weak base anions, from aqueous solutions through ion exchange processes. (felitecn.com)
  • Theoretical investigation on the nature of ion exchange of acidified uranyl sulfate solutions with Dowex 21K, a strong base ion exchange resin. (unt.edu)
  • Backwash the resin. (watertechonline.com)
  • The higher density spheres of the graded cation resin ensures good backwash separation at the recommended flow rates.It is used in hard water softening and demineralization, Sugar solution demineralization, antibiotics extracting, separation and purification of biochemicals and so on. (jmccwaterfilters.com)
  • In the present study, strong cation and anion exchange resins were tested batchwise for the recovery of the non-rare-earth constituents of permanent magnets (copper, cobalt, manganese, nickel and iron) from synthetic aqueous and ethanolic solutions. (bvsalud.org)
  • 2014) "Semicarbazide-functionalized resin as a new scavenger for in-situ recovery of 3-hydroxypropionaldehyde during biotransformation of glycerol by Lactobacillus reuteri ", Journal of Biotechnology. (lu.se)
  • Sardari, R.R.R., Dishisha, T., Pyo, S.-H., Hatti-Kaul, R., (2013) "Biotransformation of glycerol to 3-hydroxypropionaldehyde: improved production by in situ complexation with bisulfite in a fed-batch mode and separation on anion exchanger", Journal of Biotechnology. (lu.se)
  • 001×7 is a high capacity premium grade bead form conventional gel polystyrene sulphonate cation exchange resin designed for use in industrial or household water conditioning equipment, Its acidity is similar to some inorganic acids, such as sulfuric acid [H2SO4] and hydrochloric acid [HCl]. (jmccwaterfilters.com)
  • In the DM water plant, water passes through two polystyrene beds, which is the ion exchange resin. (rocareindia.com)
  • 001×10 is a premium high purity grade of conventional gel poly(styrene sulfonate) cation-exchange resin, Its chemical and physical stability, particularly its resistance to oxidation. (jmccwaterfilters.com)
  • The combination of alcohol and energy from the light fosters an oxidation state change for plutonium and it is released from the resin. (lanl.gov)
  • Here, we report on the removal and destruction of four structurally different PFECAs using an integrated anion exchange resin (AER) and electrochemical oxidation (ECO) treatment train. (bvsalud.org)
  • It is very efficient at dissolving resins used in paints, inks, lacquers, and other types of surface coatings such as in automotive, architectural, metal-coil, and industrial maintenance coatings [3] . (aiche.org)
  • Moreover, unlike other aesthetic adhesive materials, such as composite resins, adhesion to dental structures of GIC is less sensitive to technique and its quality increases with time 10 . (bvsalud.org)
  • Iron and manganese can be left on the resin after regeneration and will continue to accumulate cycle after cycle. (watertechonline.com)
  • These salt products inhibit the build-up of iron in the water softener and they remove any accumulated iron on the resin during each regeneration cycle. (watertechonline.com)
  • Regeneration of the spent resin columns revealed that high percentage (e.g., 80%) of organic cosolvent is necessary for achieving 60-100% PFECA release, and regeneration efficiency was higher for a macroporous resin than a gel-type resin. (bvsalud.org)
  • In this method, aerosolized viruses are collected in a 20 ml liquid sample contained within widely used impingers, BioSamplers (SKC Inc., Eighty Four, PA), and further concentrated via adsorption to an anion exchange resin that is suspended within this liquid. (cdc.gov)
  • Compared to direct testing of the BioSampler liquid, detection was improved by 6.77x and 3.33x for type A and type B influenza viruses, respectively, by using the anion exchange resin. (cdc.gov)
  • Resins fouled with the organic form of iron require a brine/caustic soak. (watertechonline.com)
  • Synthetic and industrially produced ion exchange resins consist of small, microporous beads that are insoluble in water and organic solvents. (sswm.info)
  • In flexographic inks DMAE can be used to solubilize resins and inoxes. (eastman.com)
  • A similar trend in selectivity of the anion resin was observed in breakthrough curve studies. (bvsalud.org)
  • Causes include accumulation of ketones and lactic acid, renal failure, and drug or toxin ingestion (high anion gap) and gastrointestinal or renal HCO 3 − loss (normal anion gap). (msdmanuals.com)
  • Our DI resins are suitable for various applications with different resistivity requirements. (felitecn.com)
  • Water cleaning technology is gaining popularity day by day and includes deionisation, ion exchange, degasification and suitable polishing. (rocareindia.com)
  • We are at the 2,000 liter single-use bioreactor scale already, and then from harvest all the way down to bulk drug substance it is single-use, except for the chromatography resins," he said. (genengnews.com)
  • Ion exchange is a water treatment method where one or more undesirable ionic contaminants are removed from water by exchange with another non-objectionable, or less objectionable ionic substance. (sswm.info)
  • Both the contaminant and the exchanged substance must be dissolved and have the same type of electrical charge (positive or negative). (sswm.info)
  • A maximum interval of three days between regenerations is a reasonable compromise between the degree of fouling of the resin and overall operating convenience and efficiency. (watertechonline.com)
  • Furthermore, our resins can extract/recycle metals, increasing the overall efficiency of the mining process. (felitecn.com)
  • Viral nucleic acids are then extracted from the resin to facilitate molecular analyses through a reduction in the effective sample volume. (cdc.gov)
  • The resin is typically soaked overnight, thoroughly rinsed, regeneraed with brine and put back in service. (watertechonline.com)
  • In the power industry, ion exchange resin is frequently used to remove contaminants from water, such as dissolved solids and heavy metals, which can cause scaling, corrosion, and equipment damage. (felitecn.com)
  • Nevertheless, ion exchange is also efficient in removing toxic metals from water. (sswm.info)
  • The most typical application of ion exchange is the preparation of high purity water for industrial applications, water softening, recovery or removal of metals in the chemical industry. (sswm.info)
  • Ion exchange water softening is an inexpensive method for improving a home's water quality and preventing costly plumbing repairs. (watertechonline.com)
  • For MS2, the anion exchange resin method allowed for an average improvement in detection of 8.26x. (cdc.gov)
  • Power plants can successfully remove these contaminants while lowering maintenance costs, extending equipment life, and improving overall system performance by utilizing our high-quality ion exchange resin solutions. (felitecn.com)
  • Our dependable resin solutions are engineered to successfully remove impurities and contaminants from water, ensuring that it fulfills the quality and safety standards necessary for a variety of applications. (felitecn.com)
  • A typical example of ion exchange is a process called "water softening" aiming to reduce calcium and magnesium content. (sswm.info)
  • This is a kind of cation exchange resin which has sulfonic acid groups [-SO3H] in the styrene-divinylbenzene copolymer with the cross-linkage of 4%.This product is used in extracting of antibiotics, pharmaceutical process, preparation of pure water or high purity water and so on. (jmccwaterfilters.com)
  • In 1850, Thomas and Way performed some of the first scientific research that indicated the existence of an ion exchange process. (sswm.info)
  • Hard water can be softened using an ion exchange softening process (SKIPTON 2008). (sswm.info)
  • This process can be repeated continually, with one exchange reaction following another. (sswm.info)
  • The process uses ion exchange resin that has an ion exchange site and the removal of mineral salts from the water. (rocareindia.com)
  • The moisture content of the resin did not have a significant role on the selectivity for copper and iron. (bvsalud.org)
  • The easiest - but more expensive - method is using a salt with resin cleaners. (watertechonline.com)
  • Metabolic acidoses are categorized as high or normal anion gap based on the presence or absence of unmeasured anions in serum. (msdmanuals.com)
  • They can be broken down to two categories, based on whether the anion gap is high or normal. (msdmanuals.com)
  • Felite Resin Technology removes the guesswork from maintaining your valuable water treatment equipment by providing you with transparent communication, superior support, and high-quality replacement parts. (felitecn.com)
  • We are committed to delivering high-quality resins that exceed industry standards and meet the evolving needs of our global customers. (felitecn.com)
  • Felite manufactures high-quality resins for domestic and commercial water treatment applications, which are designed to improve water quality while also protecting household appliances and commercial equipment. (felitecn.com)
  • Through water injection, luminol and periodate were eluted from the anion-exchange column to generate the chemiluminescence, which was inhibited in the presence of lysozyme. (or.jp)
  • If the acid solution has more than 5 ppm of iron, the resin is fouled and requires cleaning. (watertechonline.com)
  • Drain the solution from the bottom of the softener until just above the resin bed level. (watertechonline.com)
  • Mix the solution and resin. (watertechonline.com)
  • The main component of ion exchange equipment is a microporous exchange resin, which is supersaturated with a loosely held solution. (sswm.info)
  • Pour the solution onto an anion exchange resin. (lanl.gov)
  • This is associated with dissemination of methods using various ion exchange resins which are indispensable in many fields of chemical industry. (intechopen.com)
  • We've done a good job of supplying essential ion exchange resin media for water treatment systems all across the world for more than 50 years. (felitecn.com)
  • Resins in this series are engineered to meet the stringent regulatory requirements for municipal water treatment, specifically in the cleanup and remediation of contaminated groundwater. (felitecn.com)
  • Cation resins are sold in either black or amber color. (watertechonline.com)
  • Felite offers a range of standard and black version deionization (DI) resins, including general-purpose and low TOC versions that have undergone additional processing steps. (felitecn.com)
  • The importance of this discovery (in ion exchange terms) was not fully understood until later in that decade, when it was found that this reaction was reversible. (sswm.info)
  • Felite™ Resin Technology is a leading manufacturer and provider of ion exchange resins worldwide. (felitecn.com)
  • They react with the iron to form complex (chelated) compounds that are not attractive to cation resin. (watertechonline.com)
  • Iron(II) was largely oxidized to iron(III) in ethanolic solutions and was expected to be recovered by the resin in the form of iron(II) and iron(III) complexes. (bvsalud.org)
  • Water softeners are low-maintenance, and the cation resin has a working life of seven to 10 years before replacement is required. (watertechonline.com)
  • For more than 40 years, clinicians have used the anion gap (AG) as a major tool to evaluate acid-base disorders [ 1,2,3,4,5 ]. (karger.com)
  • Our special house blend of 2 types of coconut-shell GAC (including Catalytic) with 2 types of Eagle Redox Alloys® (9500 & 6500) & anion exchange resin. (crystalquest.com)
  • The analytical reagents involved in the CL reaction, including luminol and periodate, were both immobilized on the anion-exchange resins in the flow injection system. (or.jp)
  • It is very difficult to visually inspect the resin for iron and manganese fouling. (watertechonline.com)
  • Lower the water level until the amount of water above the resin bed is equal to half of the volume of the resin bed. (watertechonline.com)
  • and the use of prior knowledge (PrK) for modular validation and resin-reuse studies. (bioprocessintl.com)
  • Batch experiments, UV-Vis, FT-IR and XPS studies were performed to elucidate the ion exchange mechanism. (bvsalud.org)
  • Methylmalonic acid (MMA) is extracted from plasma along with an added internal standard using an anion exchange resin. (cdc.gov)
  • However, no study has been conducted on a SMBR for the formation of DOWANOL™ PMA glycol ether acetate using an anion exchange resin. (aiche.org)
  • The product of choice for resin cleaning should be based on the material of construction of the softener's shell and internal distributors. (watertechonline.com)