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Rapid characterization of chemical constituents in Saniculiphyllum guangxiense by ultra fast liquid chromatography with diode array detection and electrospray ionization tandem mass spectrometry 期刊论文
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, 2014, 卷号: 361, 页码: 9-22
作者:  Geng, Chang-An;  Chen, Hao;  Chen, Xing-Long;  Zhang, Xue-Mei;  Lei, Li-Gong;  Chen, Ji-Jun
Adobe PDF(1986Kb)  |  收藏  |  浏览/下载:699/223  |  提交时间:2014/05/16
Lc-dad/esi-msn  Saniculiphyllum Guangxiense  Cyanogenic Glycosides  Triterpenoids  Phenolic Sulfates  
Gas-phase non-identity S(N)2 reactions at neutral nitrogen: a hybrid DFT study 期刊论文
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, 2003, 卷号: 229, 期号: 3, 页码: 199-208
Yang, J; Ren, Y; Zhu, HJ; Chu, SY
Adobe PDF(273Kb)  |  收藏  |  浏览/下载:274/115  |  提交时间:2012/10/12
s(n)2 At Neutral Nitrogen  Hybrid Dft Method  Reaction Mechanism  Nucleophilicity  Transition-state Geometries  Nucleophilic-substitution  Methyl Halides  Sn2 Reactions  Anions  Displacement  Barriers