Identification and mass spectrum fragmentation study of polyacetylenes constituents from the rhizomes of Atractylodis macrocephalae and Atractylodes lancea
Objective: To compare and analyze the typical polyacetylenes constituents from Atractylodis macrocephalae rhizome( baizhu) and Atractylodis lancea( cangzhu). Methods: An ultra-high performance liquid chromatography coupled with photo-diode array and high resolution mass spectrum( LTQ Orbitrap MS/MS) was applied to perform the study of the polyacetylenes constituents from baizhu and cangzhu. Results: 11 and 19 polyacetylenes were identified in baizhu and cangzhu,respectively. Among them,7 polyacetylenes were...