[Feasibility study of QAMS for quantitative analysis of multiple structural types of ingredients in Atractylodis Rhizome by GC]. In this study， quantitative analysis of multi-components with single marker(QAMS) was established and validated to simultaneously determine four sesquiterpenoids(β-eudesmol， atractylon， atractylolideⅠ， atractylolide Ⅱ) in Atractylodis Rhizome based on the gas chromatographic method(GC).  The results of QAMS method were validated by comparing with that of internal standard method， and no obvious significant difference was found.
QAMS
[Feasibility study of QAMS for quantitative analysis of multiple structural types of ingredients in Atractylodis Rhizome by GC]. In this study， quantitative analysis of multi-components with single marker(QAMS) was established and validated to simultaneously determine four sesquiterpenoids(β-eudesmol， atractylon， atractylolideⅠ， atractylolide Ⅱ) in Atractylodis Rhizome based on the gas chromatographic method(GC).  Using β-eudesmol as the contrast， the relative correctionfactors(RCF) of the other three sesquiterpenoids were determined by GC. 
GC