✦ LIBER ✦
Syntheses of polymer-coated cation-exchangers on the basis of silica gels produced from ester silicates
✍ Scribed by Gernot Huhn; Helmut Müller; Günter Eppert
- Publisher
- Elsevier Science
- Year
- 1992
- Weight
- 280 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0923-1137
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✦ Synopsis
Low-capacity cation-exchange stationary phases for ion chromatography were prepared by coating a vinyl-modified silica gel with polystyrene in a reproducible way. Ion-exchange groups were formed by sulfonation of the polystyrene-coated silica gels. These strongly acid cation-exchangers were used for heavy and alkaline earth metal separations. The detection of the cations is carried out photometrically by post-chromatographic derivatization.