Enantioselective room temperature phosphorescence detection of non-phosphorescent analytes based on interaction with β-cyclodextrin/1-bromonaphthalene complexes

The lifetime difference under aerated conditions enables the direct determination of the MT stereochemistry. For mixtures, in view of the 0.06 ms uncertainty in the lifetime, enantiomeric purity can be determined down to 10%. Furthermore, in the case of MT the concentration of the least abundant enantiomer should be at least 3 × 10−4 M, since otherwise complex dissociation would obscure the lifetime difference.