Off－line　Two－Dimensional　Gas　Chromatography－Mass　Spectrometry　for　Analysis　of　Essential　Oil　of　Medicinal　Herb──Use　of　Absorption　Trap  

作　　者：MA Xue-yi PAN Hui-ping and CHEN Yao-zu(iNational Laboratory of Applied Organic Cheniistry and Deparrmentof Chemistry, Lanzhou University, Lanzhou,7300007)(Department of Chemistry , Zhejiang Univer,ity, Hangzhou, 310027) 

出　　处：《Chemical Research in Chinese Universities》1994年第4期291-296,共6页高等学校化学研究（英文版）

摘　　要：he use of an absorption trap off-line two-dimensional gas chromatography (2-DGC) in conjunction with a mass spectrometer greatly improved the separation andidefitification of minor constituents of a complex mixture such as a natural essentialoil. The absorption trap device used as an interface of 2-DGC offered the advantageof convenient manipulation.he use of an absorption trap off-line two-dimensional gas chromatography (2-DGC) in conjunction with a mass spectrometer greatly improved the separation andidefitification of minor constituents of a complex mixture such as a natural essentialoil. The absorption trap device used as an interface of 2-DGC offered the advantageof convenient manipulation.

关 键 词：Off-line two-dimensional gas chromatography Essential oil Absorp-tion trap Cymbopogon distans 

分 类 号：O657.3[理学—分析化学]