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Abstract
It is known that the separation of several organic phosphonate esters using a tris(3,5-dimethylphenyl carbamate) cellulose (Chiralcel OD) column are better than the separation obtained using the Pirkle type chiral stationary phase (CSP), namely the N-(3,5-dinitrobenzoyl) leucine column. However, the elution order of the organic phosphonate esters enantiomers separated on tris(3,5-dimethylphenyl carbamate) cellulose chiral stationary phase is not known. The tandem use of these two CSPs together showed that the R-enantiomer had shorter retention time than S-enantiomer when tris(3,5-dimethylphenyl carbamate) cellulose chiral stationary phase was used.