Determination of dencichine in Sanqi tablet by HILIC Seperation and purification of daidzein by agar gel microspheres bonded β-cyclodextrin study on and its chromatographic mechanism Determination of saponins in Dipsaci Radix by HILIC-HPLC Identification of active components in Syngnathus acus by HILIC-ESI-TOF/MS and study on their specific fingerprint chromatograms