Advances in stationary phase development in suppressed ion chromatography

Selectivity variations in suppressed ion chromatography (IC) are most commonly introduced through the use of different stationary phases. In recent years, considerable advances have been made in developing new stationary phases for IC, Advances include the development of solvent compatible polymers, methacrylate-based latex materials for the analysis of oxyhalide species, high capacity, weak acid cation exchangers for the simultaneous determination of ammonium and alkali/alkaline earth cations, and hydroxide selective anion exchange resins for improved isocratic and gradient hydroxide separations, These advances continue to broaden the applicability of ion chromatography, and it appears likely that future developments in stationary phase technology will continue to enhance the utility of this technique. (C) 1997 Elsevier Science B.V.