摘要
A good chiral discrimination of lansoprazole (LAN) enantiomers was realized by a chiral N,N'-dioxideSc(III) complex, which was based on a fluorescent method through an 'off-on' process. The chiral ligand, N,N'-dioxide, coordinated with scandium(III) triflate forming an organic-metal complex as a chiral selector. Then the LAN enantiomers reacted with the selector and generated different signals in fluorescence. A distinct enantiomeric difference was observed with good repeatability, low detection limit, good linear range, and highly enantiomeric selectivity. At last, this study had offered a quantitative measurement of the enantiomer composition.