A mixed stationary phase of modified β-cyclodextrin, 2,6-di-O-butyl-3-O-butyryl-β-cyclodextrin (phase A), and SE-54 (phase B) was used for enantiomeric separ
DAQING, a city in China’s northeast, has a proud re-cord. Its oil industry was founded 49 years ago, and
DAQING, a city in China’s northeast, has a proud re-