Gas chromatography-time of flight (GC-TOF) and analogous separation methods in analysis of Pogostemon cablin Benth essential oil

ANYL 144

Hua Zhang, huazhang@chem.dlut.edu.cn, Xin Chen, chenxinlwb@yahoo.com.cn, Qiang Xu, and Jihong Liu. Department of Appling Chemistry, Dalian University of Technology, No.139, No.158, Zhongshan Road, Liaoning province, China, 116012 Dalian, China
Pogostemon cablin Benth is a common used traditional Chinese medicine and food material in Chinese medicated diet since ancient times. Its essential oil was found to show significant antifungal and antibacterial activities. To achieve more reliable qualitative analysis result, Analogous separation methods (HPLC, Silica gel CC) and PTRIs were first used to assist GC-TOF identification of Pogostemon cablin Benth essential oil in this study. 11 compounds not reported before were tentatively determined, including p-Propenylanisole, Dibutyl phthalate, à-Naphthylphenylamine, Butylated Hydroxytoluene, 2,5-Dimethyl-3,4-hexanediol, Diphenylsulfide, and 5 saturated linear hydrocarbons. A new idea of essential oil analysis might be applied from this study, and the PTRIs data obtained might be contributive to build a generate PTRI database for natural essential oils.The following table showed components determined after analogous separation in essential oils of Pogostemon cablin Benth.Compounds listed in order to their elution on the HP-5 column; n.d.:not determined; *: compound not reported in Pogostemon cablin Benth oils; a: compound determined after HPLC separation; b: compound determined after Silica gel column separation.

 

General Posters
7:00 PM-9:00 PM, Sunday, August 19, 2007 BCEC -- Exhibit Hall - B2, Poster

Division of Analytical Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007