ANYL 128 |
| Three high efficiency aryloxyphenoxypropionic acid herbicides, fluazifop, diclofop and cyhalofop-butyl, were enantioseparated on CDMPC successfully. The influence of the mobile phase composition and solute structure on the chiral separation was studied. Among three aryloxyphenoxypropionic acid herbicides, the cyhalofop-butyl retained longest and diclofop got the best enantioseparation indicating that the p-p stacking which produced by CN group of the cyhalofop-butyl might benefit to retention but didn't contribute to enantioseparate. The results also showed that the hydrogen-bonding interactions between the fluazifop and CDMPC played an important role in chiral recognition. As for diclofop and cyhalofop-butyl, the inclusion and fitness of solute shape in the chiral cavity contributed to the chiral discrimination. In conclusion, the structure of solutes and CSP play a key role in the chiral recognition. The method brought out a technical support for searching for high efficiency and low poison aryloxyphenoxypropionic acid herbicides. |
|
General Papers
7:00 PM-9:00 PM, Sunday, 10 September 2006 Moscone Center -- Hall D, Poster
Division of Analytical Chemistry |