Liquid membranes can selectively concentrate specific ions and separate short-lived reaction intermediates. Separations using these membranes can be expedited by making them thin, with a large surface area per unit volume. Separations are also profoundly influenced by the chemistry, at times in surprising ways. Separation systems currently in operation include those for copper, nickel, chromium, and electrons.
Bibliographical noteFunding Information:
This work was partially supported by National Science Foundation grants ENG 77-00981 and ENG-77-02129, and by the National Institute of Arthritis, Metabolic, and Digestive Diseasesg rant number 5ROl AM 16143-07.