Systematic Study of High Molecular Weight Compounds in Amazonian Plants by High Temperature Gas Chromatography-Mass Spectrometry

2000 ◽  
Vol 55 (3-4) ◽  
pp. 175-179 ◽  
Author(s):  
Denilson Soares de Siqueira ◽  
Alberto dos Santos Pereira ◽  
José Augusto Cabralb ◽  
Carlos Alberto Cid Ferreirab ◽  
Francisco Radler de Aquino Neto
Keyword(s):  
Mass Spectrometry ◽  
Molecular Weight ◽  
Gas Chromatography ◽  
High Temperature ◽  
High Resolution ◽  
High Molecular Weight ◽  
Systematic Study ◽  
Gas Chromatography Mass Spectrometry ◽  
High Resolution Gas Chromatography ◽  
High Temperature Gas

Abstract The fractions of hexane and dichloromethane extraction from marupá (Simaruba amara) and (Bertholletia excelsa) leaves were analyzed by HT-HRGC (high temperature high resolution gas chromatography) and HT-HRGC coupled to mass spectrometry (HT-HRGC-MS). Several compounds can be characterized including unusual high molecular weight com pounds.

Study of Propolis by High Temperature High Resolution Gas Chromatography-Mass Spectrometry

1999 ◽  
Vol 54 (5-6) ◽  
pp. 395-400 ◽  
Author(s):  
Alberto dos Santos Pereira ◽  
Mônica Freiman de Souza Ramos ◽  
Elisa Suzana Carneiro Poças ◽  
Patricia Castro Moreira Dias ◽  
Elisabete Pereira dos Santos ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Molecular Weight ◽  
High Temperature ◽  
High Resolution ◽  
Rapid Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Flavonoid Aglycones ◽  
Crude Extracts ◽  
High Resolution Gas Chromatography ◽  
Acetone Extracts

Abstract The underivatized hexane and acetone extracts of two propolis samples (from Brazil’s southwest) were analyzed by HT-HRGC (high temperature high resolution gas chromatogrphy) and HT-HRGC coupled to mass spectrometry (HT-HRGC-MS). Several compounds, including flavonoid aglycones, phenolic acids and high molecular weight compounds could be readily characterized in the crude extracts by HTHRGC-MS. HTHRGC and HTHRGC-MS were shown to be quick and informative tools for rapid analysis of crude extracts without need for prior derivatization and purification.

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