Ion exchange and liquid column chromatography

Abstract

This year the reviews of ion exchange and of liquid column chromatography are combined. It was logical to do this, for the techniques of high-performance liquid .chromatography include the use of ion exchangers. For one reviewer to report on two years' advances in liquid chromatography as well as in ion exchange is, however, a formidable task. It was made somewhat easier by the decision to include ion-exchanging thin-layer and paper chromatography in another review. "Liquid ion exchangers" are likewise omitted except for a few references to partition chromatography.To cite all the literature references in the two overlapping fields of ion exchange and liquid column chromatography is clearly impossible. Computer print-outs can be obtained from the abstract services, but a reviewer should do more than merely copy these lists. I preferred to peruse the Harold F. Walton joined the staff of the University of Colorado in 1947. His research interests in ion exchange date from 1938 when he went to work for the Permutit Co. as a research chemist; from there he went to Northwestern University in 1940. He obtained the BA and DPhil degrees at Oxford University. He is the author of three textbooks on inorganic and analytical chemistry and coauthor with William Rieman III of "Ion Exchange in Analytical Chemistry" published in 1970. He has contributed chapters on the physical and analytical chemistry of ion exchange to several cooperative works. In 1961 he was chairman of the Gordon Research Conference on Ion Exchange. Dr. Walton spent the 1966-67 academic year and half of 1970 as a Fulbright visiting professor at the University of Trujillo, Peru. He was a member of the Advisory Board of Analytical Chemistry.

Prediction of capacity factors for aqueous organic solutes adsorbed on a porous acrylic resin

“…Amberlite XAD-8 is a macroreticular, nonionic, acrylic ester polymer (1). Because of ester cross-linkage, it has a more polar structure than Amberlite XAD-2 (styrene-divinylbenzene polymer) which has been used extensively to preconcentrate trace organic solutes from natural waters (2)(3)(4)(5)(6)(7)(8)(9)(10). In spite of the widespread use of XAD resins, there has been no comprehensive effort to model which solutes will adsorb and what their respective capacity factors will be.…”

Inorganic and geological materials

“…Ion-Exchange, Liquid Column, and Liquid Extraction Chromatography. The Fundamental review of ion-exchange and liquid column chromatography by Walton (319) cites numerous references to inorganic applications. An extensive table lists much pertinent data on each element separated and includes more than 150 applications.…”

Selective Separation of Rubidium on Titanium(IV) Ferricyanide Gel Columns

“…reviews. [2][3][4][5][6] Most of these products show leaching in contact with salt solutions, are susceptible to oxidation and exhibit specific selectivity for cesium. In continuation to our work on chromium' and thorium ferrocyanides8, we report in this paper the investigations performed on the synthesis and ion exchange properties of titanium(IV) ferricyanide.…”