Enantiomeric resolution of pyrethroids by high-performance liquid chromatography with diode-laser polarimetric detection

摘要

Liquid chromatographic separation of the pyrethroid insecticides, bifenthrin and fenpropathrin, has been investigated with various achiral and chiral stationary phases. The identification of enantiomers of fenpropathrin and bifenthrin has been carriedout by using two detectors in high-performance liquid chromatography: a UV spectrometer and a diode-laser polarimeter. Optimization of the mobile phase has been performed dealing regard to analyte resolution and polarimetricsignal values.