... Ion-chromatographic behavior of anions on silica-based polyelectrolyte anion exchangers . Abstract Polyelectrolyte anion exchangers based on commercially available non-sulfonated silicas Silasorb 600 and Kromasil modified with quaternized poly(4-vinylpyridine) are proposed. ... Key words : polyelectrolyte anion exchangers, ion chromatography, silica, poly(4-vinylpyridine), determination of anions. Moscow University Chemistry Bulletin . 2015, Vol. ... Copyright (C) Chemistry Dept., ...