Fingerprint analysis of saponins in Sanjie Zhentong Capsule by HPLC Fingerprint analysis of saponins in Sanjie Zhentong Capsule by HPLC Fingerprint of phenolic constituents in Sanjie Zhentong Capsule and quantitative determination of multi-components Measurement of mass fraction of Sanjie Zhentong capsules with near infrared reflectance spectroscopy Research on ultrafine grinding technology of improving dissolution rates of effective components in Sanjie Zhentong capsule