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cation-exchange resin |
Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson | 0.01 sec. |
cation-exchange resin, any one of various insoluble organic polymers with high molecular weights that exchange their cations for other cations in solution. Cation-exchange resins are used especially to restrict intestinal sodium absorption in patients with edema. Compare anion-exchange resin. cation a positively charged ion. cation-anion balance the balance in serum or plasma between the anions and cations must equilibrate near to the level of 155 mEq/l. Estimation of any imbalance, usually by chloride and bicarbonate measurement, is basic to any determination of acid-base abnormality. cation channels channels through selectively permeable membranes via which only cations can migrate. dietary cation-anion difference prepartum has a major influence on the incidence of hypocalcemia (milk fever) in dairy cattle and, in the control of the disease, is manipulated so as to result in a metabolic acidosis which facilitates the mobilization of calcium. Defined as milliequivalents of (Na+K)-(Cl+S) per kg DM diet. cation-exchange resin ion-exchange resin. resin 1. a solid or semisolid, amorphous organic substance of vegetable origin or produced synthetically. True resins are insoluble in water, but are readily dissolved in alcohol, ether and volatile oils. 2. rosin. acrylic r's products of the polymerization of acrylic or methacrylic acid or their derivatives and used in the fabrication of surgical prostheses and equipment. anion-exchange resin see ion-exchange resin. cation-exchange resin see ion-exchange resin. cholestyramine resin a synthetic, strongly basic anion-exchange resin in the chloride form which chelates bile salts in the intestine, thus preventing their reabsorption. composite resin usually a mixture of organic matrix and inorganic filler, used in restorative dentistry. ipomoea resin, jalap resin, scammony resin severe cathartics and irritants; little used because of their disastrous effects. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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cathode ray tube cathode-anode circuit, high-voltage cathodic cathomycin cation cation exchange cation-exchange chromatography cation-exchange resin cationic catling catnip catoptric catoptrics Catostomus commersoni catpox |
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