Direct chiral high performance liquid chromatography separation of O-ethylO-phenyl N-isopropylphosphoroamidothioates

The enantiomers of thirty-nine O-ethyl O-phenyl N-isopropyl phosphoroamidot hioates have been separated by high performance liquid chromatography on a Pirkle model chiral stationary phase using ten mobile phase. Chromatographi c data are presented for the separation of these organic phosphorus enantio mers on the chiral phase. The influences of molecular structures and compos itions of mobile phases have been described.