title: A molecular recognition strategy towards tetra-chlorinated dibenzo-p-dioxins, TCDDs.
abstract: Uniformly sized polymeric separation media were prepared using o- or p-xylene as porogenic template to investigate chromatographic selectivity towards tetra-chlorinated dibenzo-p-dioxins (TCDDs). TCDDs having chlorine atoms at ortho positions of phenyl rings were selectively retained on stationary phase prepared with o-xylene as porogenic template, while TCDDs having chlorine atoms at para positions of phenyl ring were found to be retained selectively on the stationary phase imprinted by the porogenic template, p-xylene. Slightly longer cross-linking agent afforded chromatographically selective retention for larger TCDD isomers. It was also found that positional relationship between substituted chlorine atoms was also important for chromatographic recognition.
authors.affiliation: Department of Polymer Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
authors.forename: Ken
authors.initials: K
authors.lastname: Hosoya
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Watabe
authors.forename: Tohru
authors.initials: T
authors.lastname: Ikegami
authors.forename: Nobuo
authors.initials: N
authors.lastname: Tanaka
authors.forename: Takuya
authors.initials: T
authors.lastname: Kubo
authors.forename: Tomoharu
authors.initials: T
authors.lastname: Sano
authors.forename: Kunimitsu
authors.initials: K
authors.lastname: Kaya
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004784:Environmental Monitoring / Q000379:methods; D044367:Phase Transition; D010865:Pilot Projects; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000302:isolation & purification*; D016062:Porosity; D014992:Xylenes / Q000737:chemistry*
chemical_list: D000072317:Polychlorinated Dibenzodioxins; D014992:Xylenes