Separation of Lead and Barium by Ion Exchange Resins

[Ion exchange resins].

Ion exchange resins have been used to help formulate pharmaceuticals since the late 1950's. During that time they have proved to be safe and effective excipients and are now used in many commercial formulations throughout the world. In this article we will look at some of the common problems faced by formulators and how using ion exchange resins may be able to solve them. Ion exchange resins ar...

Displacement chromatography on synthetic ion-exchange resins. 1. Separation of organic bases and amino-acids using cation-exchange resins.

9. Accumulation of glutamate also occurred in isolated kidney cortex, spleen, lung and chorion. Six other tissues examined maintained a concentration gradient between tissue and medium, but did not increase the glutamate concentration above the original level. 10. It is pointed out that tissue slices afford a system in which problems of permeability and storage can be studied under controlled c...

Ion exchange resins: catalyst recovery and recycle.

Development of functional resins by modification of ion - exchange resins and their application to analytical chemistry

Some novel functional resins were developed for highly selective separation and/or determination of mercury, selenium, fluoride and hydrogen peroxide, by simple modification of common ion—exchange resin with appropriate reagents. These reagents should have three functional properties, namely selective reaction with the determinant of interest, an ion—exchange reaction with the resin and physica...

Displacement chromatography on synthetic ion-exchange resins. 2. The separation of organic acids and acidic amino-acids by the use of anion-exchange resins.

The application of the principle of displacement chromatography to the separation of bases and amino-acids on columns packed with the cationexchange resin Zeo-Karb 215 has been described in Part 1 of this communication (Partridge & Westall, 1949). It is expected that this method will prove to be of value in the isolation of bases and amino-acids from biological extracts of various kinds, and th...