Results 231 to 240 of about 2,238,839 (285)

Anion-Exchange Resins in Antibiotic-Associated Colitis.

Lancet, The, 1978
A B Onderdonk, T W Chang, J G Bartlett
exaly   +3 more sources

Protein chromatography on an anion-exchange resin

Archives of Biochemistry and Biophysics, 1956
Abstract 1. 1. A technique for protein chromatography on the anion-exchange resin Dowex 2 is described. 2. 2. The stepwise elution of human serum albumin has been studied in some detail. 3. 3. A displacement technique has been used for the separation of the alkaline and acid phosphatases in human cancer serum. 4. 4.
H G, BOMAN, L E, WESTLUNG
openaire   +2 more sources

On anion-exchange resin selectivities

Journal of Inorganic and Nuclear Chemistry, 1962
Abstract The selectivity of anion-exchange resins in contact with very dilute external solutions (negligible resin invasion by non-exchange electrolyte) is considered due in large part to changes in the solvation of the ions, resulting from differences in the properties of the resin-phase solution and the external dilute aqueous solution.
B. Chu, D.C. Whitney, R.M. Diamond
openaire   +1 more source

Exchange equilibria on anion resins

Desalination, 1974
Abstract Selectivity coefficients, free exchange energies and enthalpies between 5°C and 45°C of different anion resins with functional groups of the amino type were determined for the SO−4/Cl− system in a range of bulk salinities lying between 6 x 10−3 and 2.4 N The experimental results showed that the selectivity for the bivalent ion depends ...
G. Boari, L. Liberti, C. Merli, R. Passino   +3 more
openaire   +1 more source

Transesterification with an anion-exchange resin

The Journal of Organic Chemistry, 1969
Transesterification of amino acid peptide alkyl and fatty acid esters by treatment with anion- exchange ...
Wilfred Pereira, Virginia A. Close, Walter Patton, Berthold Halpern   +3 more
openaire   +1 more source

Chloride-sulphate exchange on anion-exchange resins

Journal of Chromatography A, 1974
Abstract The exchange rates for the complete conversion of many anion-exchange resins from the chloride to the sulphate form when particle diffusion is the controlling mechanism have been measured. Infinite solution volume conditions were adopted, using the centrifugal stirrer-reactor technique.
Lorenzo Liberti, Roberto Passino
openaire   +1 more source

Isoporous Anion-–Exchange Resins

2011
Publisher Summary This chapter provides a brief overview of isoporous anion-exchange resins. Styrene–divinylbenzene (DVB) copolymers show a remarkable advantageous property; they can readily enter into many chemical transformations. They have significant role in the synthesis of various catalysts, polymeric reagents, chromatographic separating media,
Vadim Davankov, Maria Tsyurupa
openaire   +1 more source

Some ion-exchange resins for anion-chromatography

Talanta, 1987
The quaternary ammonium salts, n-butyltrimethylammonium iodide, 1,1,3,3-tetramethylbutyltrimethylammonium iodide, n-octadecyltrimethylammonium iodide and tri-n-dodecylmethylammonium iodide were synthesized from commercially available amines and together with n-hexadecyltrimethylammonium bromide tested for retention by a series of macroreticular resins (
A S, Al-Omair, S J, Lyle
openaire   +2 more sources

Chromatography of aromatic compounds on anion-exchange resins

Talanta, 1975
Complex mixtures of aromatic compounds can be rapidly separated on anion-exchangers in the acetate form with acetic acid as eluent and determined automatically by recording the absorbance in the ultraviolet. Carboxylates are separated by ion-exchange.
L M, Jahangk, L, Olsson, O, Samuelson
openaire   +2 more sources

Efficiency of iodide trapping by anion exchange resins

Clinica Chimica Acta, 1966
Abstract “Amberlite-IRA-400” and “De-Acidite FF” resins can effectively trap and retain iodide in vitro . Small concentrations of resin efficiently bind iodide present in gastric juice, but resin may later release some of this bound iodide during passage through the intestinal tract. A four-hourly 5.0 g oral dose of resin does not ensure the binding
P J, Scott, C T, Jones, J P, Simcock
openaire   +2 more sources