Isolation and identification of siderophore producing bacteria CAS15 from the soil Analysis of compatibility mechanism of Radix Ginseng Rubra with Fructus Schisandrae Chinensis by HPLC-ESI-MS Stripping and hydrolyzing balance of aconitic alkaloids in processing of Sini Decoction Effect of various ingredients in Bawei Dihuang Decoction on release of aconitine alkaloids by ESI-MS spectrometry