Chemical characterization of sub-micron organic aerosols in the tropical trade winds of the Caribbean using gas chromatography—mass spectrometry

2002 ◽  
Vol 36 (33) ◽  
pp. 5259-5263 ◽  
Author(s):  
Bernd R.T. Simoneit
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Organic Aerosols ◽  
Chemical Characterization ◽  
Gas Chromatography Mass Spectrometry ◽  
Trade Winds ◽  
Chromatography Mass Spectrometry ◽  
The Caribbean

Chemical characterization of Goniothalamus macrophyllus and Goniothalamus malayanus leaves’ essential oils

2020 ◽  
Vol 75 (11-12) ◽  
pp. 485-488
Author(s):  
Natasa Mohd Shakri ◽  
Wan Mohd Nuzul Hakimi Wan Salleh ◽  
Shamsul Khamis ◽  
Nor Azah Mohamad Ali
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oils ◽  
Chemical Characterization ◽  
Gas Chromatography Mass Spectrometry ◽  
Chemical Compositions ◽  
Chromatography Mass Spectrometry ◽  
Germacrene D

AbstractThis study was aimed to investigate the chemical compositions of the essential oils from Goniothalamus macrophyllus and Goniothalamus malayanus growing in Malaysia. The essential oils were obtained by hydrodistillation and fully characterized by gas chromatography (GC–FID) and gas chromatography–mass spectrometry (GC–MS). Analyses of the essential oils from G. macrophyllus and G. malayanus resulted in 93.6 and 95.4% of the total oils, respectively. The major components of G. macrophyllus oil were germacrene D (25.1%), bicyclogermacrene (11.6%), α-copaene (6.9%) and δ-cadinene (6.4%), whereas in G. malayanus oil bicyclogermacrene (43.9%), germacrene D (21.1%) and β-elemene (8.4%) were the most abundant components.

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