Simple preparation of a bonded cation-exchange packing material and its application to the separation of phenothiazines by high-performance liquid chromatography
Wheals, B.B.
Journal of Chromatography 177(2): 263-270
1979
ISSN/ISBN: 0021-9673 PMID: 43332 Document Number: 148163
A method for introducing sulfonic acid groups on to a microparticulate silica is described. A mercaptopropyl bonded phase is formed followed by oxidation to the corresponding sulfonic acid. The packing material so prepared displays cation-exchange properties and was used to separate phenothiazines, which are used as psychosedatives.
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