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A simple high-performance liquid-electrospray ionization tandem mass spectrometric (HPLC-ESI-MSn) method has been developed for the rapid identification of clindamycin and its related minor(More)
The stems of the Chinese traditional medicine Stephanotis mucronata were screened for immunologically active pregnane glycosides using high-performance liquid chromatography (HPLC) coupled with(More)
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