The influence of different alcohol modifiers in mobile phase on the chiral separation of 4''''''''-methoxyl flavanone,5-methoxyl
The configurations of substituted phenyl furoisoxazolines were determined by study on their 1H-NMR and 1D NOESY. The characteristic chemical shifts of the (-lac
Two new spirostanol sapogenins named agavegenin A and B were isolated from the fermentted leaves of Agave americana L.Their structures were elucidated as (23S,2
The coupling of capillary electrophoresis to electrospray Fourier transfrom ion cyclotron resonance mass spectrometry (FT-ICR-MS) was presented for the on-line