Retention of Halogenated Solutes on Stationary Phases Containing Heavy Atoms
AbstractTo examine the effects of weak intermolecular interactions on solid-phase extraction (SPE) and chromatographic separation, we synthesized some novel stationary phases with a heavy atom effect layer by immobilizing halogenated aromatic rings and hydroxyl groups onto the surface of a hydrophilic base polymer. Using SPE cartridges packed with the functionalized materials, we found that the heavy atom stationary phases could selectively retain halophenols in organic solvents, such as 1-propanol which blocks the hydrogen bonding, or acetonitrile which blocks the p-p interaction. The extraction efficiency of the materials toward the halophenols depended on the dipole moments of phenoxy groups present as functional groups. On the other hand, the extraction efficiency of solutes toward the functional group depended on their molar refractions, i.e., induced dipole moments. The retention of the solutes to the stationary phase ultimately depended on not only strong intermolecular interactions, but also the effects of weak interactions such as the dispersion force. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Miwa, T.; Yamamoto, A.; Saito, M.; Inoue, Y. Retention of Halogenated Solutes on Stationary Phases Containing Heavy Atoms. Molecules 2013, 18, 5163-5171.
Miwa T, Yamamoto A, Saito M, Inoue Y. Retention of Halogenated Solutes on Stationary Phases Containing Heavy Atoms. Molecules. 2013; 18(5):5163-5171.Chicago/Turabian Style
Miwa, Toshio; Yamamoto, Atsushi; Saito, Mitsuru; Inoue, Yoshinori. 2013. "Retention of Halogenated Solutes on Stationary Phases Containing Heavy Atoms." Molecules 18, no. 5: 5163-5171.