ISSN:
1612-1112
Keywords:
Column liquid chromatography
;
Ion-pair separations
;
Dianionic species
;
Dionium reagent
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary Dionium cations, polymethylenebis(tributylphosphonium)s (BuCnBPs), were used as ion-pair reagents for ion-pair chromatography of dianionic species, such as maleate, fumarate, phthalates, and naphthalenedisulfonates. The longer the length of methylene chain connecting the two phosphonium cationic ceterns within BuCnBP, the larger was the retention of these dianionic species. The dionium reagents had a higher retention ability compared to conventional monoonium reagents, and enabled a higher resolution among the dianionic species of structural isomers. The extraction behavior of the dianionic species in a loctanol/water system was also investigated. The retention behavior by the use of BuCnBP was discussed in comparison with the extraction behavior.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02262471
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