1998
DOI: 10.1051/analusis:1998111
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Ion chromatography using anion exchangers modified with heparin

Abstract: Abstract. Retention behavior of inorganic anions and cations on anion exchangers modified with heparin has been investigated. Retention of anions on the anion exchanger was remarkably reduced after the modification with heparin. The cations of the eluent affected the retention behavior of ions. The retention factor of anions decreased with decreasing eluent concentration when sodium sulfate and magnesium sulfate were used as the eluent, whereas it increased with decreasing eluent concentration when aluminium s… Show more

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Cited by 16 publications
(12 citation statements)
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“…They followed up this work with heparin-coated columns [53]. Like chondroitin, heparin contains an amidosulfonic acid group aside from carboxylate and sulfonate groups.…”
Section: Ionically Coated Ion Exchangersmentioning
confidence: 99%
“…They followed up this work with heparin-coated columns [53]. Like chondroitin, heparin contains an amidosulfonic acid group aside from carboxylate and sulfonate groups.…”
Section: Ionically Coated Ion Exchangersmentioning
confidence: 99%
“…[2,3] developed bovine serum albumin as a stationary phase for the separation of inorganic anions. A few papers also have been reported for the simultaneous separation of anions and cations [4][5][6].…”
Section: Introductionmentioning
confidence: 99%
“…There is another modification method that controls the ion-exchange capacity, e. g., electrostatic modification. The authors found that silica-based anion-exchange columns could be modified by coating with anionic mucopolysaccharides such as chondroitin sulfate and heparin [5][6][7]. It was observed that the modified columns exhibited unusual retention behavior owing to the presence of free anionic groups of the modifier as well as residual anion-exchange sites of the substrate.…”
Section: Introductionmentioning
confidence: 99%
“…Strongly basic anion-exchangers modified with heparin retained both anions and cations, and simultaneous separations of anions and cations were demonstrated using copper sulfate as eluent [6]. It was suggested that the modifier size would strongly affect the ion-exchange properties of the modified phase.…”
Section: Introductionmentioning
confidence: 99%