Quality assessment of Longxue Tongluo Capsule based on HPLC fingerprint and multi-components simultaneous determinnation Fingerprint of phenolic constituents in Sanjie Zhentong Capsule and quantitative determination of multi-components Simultaneous determination of 7-hydroxy-4′-methoxyflavane and pterostilbene in Zhuang Medicine Dracaena cochinchinensis by HPLC