| Popis: |
This chapter provides an in-depth, first-hand overview of the discovery of ion chromatography (IC)—From the design of a packed bed suppressor that was needed to exchange the anionic chloride eluent, to the regeneration and development of a new innovative means of achieving low capacity stationary phases that will keep the reader engrossed. The combination of a surface-sulfonated stationary phase which had a capacity that was two orders lower than a standard Dowex 50 ion exchange resin and a suppressor comprising Dowex 1, 8% cross-linked, 200–400 mesh ion exchange resin in the hydroxide form is discussed. The first example of separation of cations by suppressed IC was born! Anion exchange separation was also pursued in a new agglomerated anion exchange phase with a tubular membrane-based suppressor device. Next, the development of latex chemistries that drove the development of anion exchange columns by a latex agglomeration on top of the surface-sulfonated ion exchangers is discussed. Lastly, the use of carbonate as the preferred eluent revolutionized anion analysis. The chapter also briefly outlines the license and development of commercial products from Dionex Corporation. Overall, an excellent overview of the invention of IC is presented. |
