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Indirect detection in reversed-phase liquid chromatography: Ion-pair retention models for anionic analytes and mobile phase components on polystyrene polymers using an alkaline mobile phase

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Summary

Retention models for anionic analytes and mobile phase compounds in reversed-phase ion-pair chromatographic systems have been studied. The solid phase was a polystyrene-divinylbenzene copolymer. The analytes were mono- and divalent anions monitored by indirect detection technique. The mobile phase was highly alkaline and contained a detectable anion, sulfanilic acid.

Expressions for the ion-pair retention of solutes and mobile phase components have been developed assuming Langmuir distribution of ion-pairs to a solid phase with one kind of binding site. The validity of the expressions and the origin of system peaks have been confirmed by determination of distribution constants using linear regression.

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Arvidsson, E., Crommen, J., Schill, G. et al. Indirect detection in reversed-phase liquid chromatography: Ion-pair retention models for anionic analytes and mobile phase components on polystyrene polymers using an alkaline mobile phase. Chromatographia 26, 45–52 (1988). https://doi.org/10.1007/BF02268123

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  • DOI: https://doi.org/10.1007/BF02268123

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