Affinity Capillary Electrophoresis for Selective Control of Electrophoretic Mobility of Sialic Acid Using Lanthanide-Hexadentate Macrocyclic Polyazacarboxylate Complexes

Xylitol Separation from a Polyol Mixture Using Lanthanide Ion-loaded Resins

Xylitol separation from a polyol mixture of the byproducts from bioethanol production processes was performed by liquid chromatography using short columns packed with lanthanide ion-loaded ion-exchange resins. Xylitol was successfully separated with sufficiently high resolution using adsorbents with medium rare-earth metal ions, such as Nd³⁺ and Sm³⁺. The adsorbents' specific nature is explained by the so-called "gadolinium break," which is known as a discontinuous behavior of thermodynamic parameters in complexation of the lanthanide series. From the observed behavior, the optimum lanthanide ions could be chosen to prepare appropriate adsorbents for ligand-exchange chromatography of given polyol mixtures.

Capillary electrophoretic separation of cis/trans isomers of bis(o-diiminobenzoquinonato)platinum(ii) complexes using β-cyclodextrins as the selector

Capillary electrophoresis was employed to successfully resolve the cis/trans isomers of Pt^II-diradical complexes using β-cyclodextrins as the selector, allowing for the estimation of the inclusion constant and the representation of the inclusion complex through mobility.