Separation of butyltin and phenyltin species by ion-exchange chromatography with complexing mobile phases
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Butyltin and phenyltin species have been separated by ion-exchange chromatography using silica-based and polymer-based columns. Mobile phases consisted of methanol-water mixtures containing polyfunctional carboxylic acids, which can act as complexing agents for organotin species. The best results were achieved with a system based on a methanol mobile phase containing malic and oxalic acids and a polymer-based column, which allowed the separation of tri- and diorganotin compounds and some resolution between monobutyltin and monophenyltin.
Key WordsColumn liquid chromatography Ion-exchange chromatography Butyl-and phenyltins Morin and fisetin
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