A molecular recognition strategy towards tetra-chlorinated dibenzo-p-dioxins, TCDDs.
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.
Hosoya
Ken
K
Department of Polymer Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
Watabe
Yoshiyuki
Y
Ikegami
Tohru
T
Tanaka
Nobuo
N
Kubo
Takuya
T
Sano
Tomoharu
T
Kaya
Kunimitsu
K
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*
D000072317:Polychlorinated Dibenzodioxins; D014992:Xylenes