Biosynthetic Studies of the Male Marking Pheromone in Bumblebees by Using Labelled Fatty Acids and Two-Dimensional Gas Chromatography with Mass Detection

ChemPlusChem ◽  
2015 ◽  
Vol 80 (5) ◽  
pp. 839-850 ◽  
Author(s):  
Petr Žáček ◽  
Jiří Kindl ◽  
Kateřina Frišonsová ◽  
Markéta Průchová ◽  
Alena Votavová ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Two Dimensional ◽  
Mass Detection ◽  
Marking Pheromone ◽  
Biosynthetic Studies

scholarly journals Development of a Method for the Measurement of Human Scent Samples Using Comprehensive Two-Dimensional Gas Chromatography with Mass Detection

Separations ◽  
2021 ◽  
Vol 8 (12) ◽  
pp. 232
Author(s):  
Petra Pojmanová ◽  
Nikola Ladislavová ◽  
Štěpán Urban
Keyword(s):  
Gas Chromatography ◽  
Chromatographic Method ◽  
Complex Mixture ◽  
Two Dimensional ◽  
Mass Detection ◽  
Chromatographic System ◽  
Optimal Arrangement ◽  
Complex Samples ◽  
Targeted Analysis ◽  
Optimal Resolution

Every human body is a source of a unique scent, which can be used for medical or forensic purposes. Human skin scent is a complex mixture of more or less volatile compounds with different chemical and physical properties, which often differ significantly in their concentrations. The most efficient technique for separating such complex samples is comprehensive two-dimensional gas chromatography (GC × GC). This work aimed to find the optimal arrangement of a two-dimensional chromatographic system and define a suitable chromatographic method for non-targeted analysis of human scent samples. Four different chromatographic columns (non-polar Rxi-5MS and TG-5HT, medium polar Rxi-17Sil MS and Rtx-200MS) and their different configurations were tested. The best system was the 30 m primary column Rtx-200MS (with the 2 m pre-column Rtx-200MS) and the 1 m secondary column TG-5HT in a reverse configuration. This system achieved the highest theoretical and conditional peak capacities, optimal resolution, and the lowest number of coelutions.

Characterization of Biodiesel from Vegetable Oil Using Comprehensive Two-Dimensional Gas Chromatography

2012 ◽  
Vol 260-261 ◽  
pp. 312-317 ◽  
Author(s):  
Ferdinando Corriere ◽  
Giorgia Peri ◽  
Vincenzo La Rocca
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Internal Combustion Engines ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Combustion Engines ◽  
Two Dimensional ◽  
Mass Percentage ◽  
Heating Value

Biodiesel from vegetable oils has been analyzed and its suitability for internal combustion engines has been assessed. The Standard biofuel’s characteristics have been investigated. Gas chromatography (GC) tests were carried out to characterize the fatty acid behavior. It was found that the mass percentage of saturated fatty acids did not change substantially with time, while unsaturated fatty acids increased with time for both B100 and B30. An increase in density for B100 and B30 with time was noted. Biodiesel density was within the standardization. The calorific values of biodiesel and its blend increased with time. Higher heating value for B100 increased from 41 to 43 MJ/kg while B30 increased from 44 to 45 MJ/kg.

Monodimensional (GC-FID and GC-MS) and Comprehensive Two-dimensional Gas Chromatography for the Assessment of Volatiles and Fatty Acids fromRuta chalepensisAerial Parts

2014 ◽  
Vol 25 (5) ◽  
pp. 468-475 ◽  
Author(s):  
Laura Tedone ◽  
Rosaria Costa ◽  
Selenia De Grazia ◽  
Salvatore Ragusa ◽  
Luigi Mondello
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Two Dimensional

Comprehensive two-dimensional gas chromatography in the analysis of dietary fatty acids

2004 ◽  
Vol 27 (5-6) ◽  
pp. 459-467 ◽  
Author(s):  
Tuulia Hyötyläinen ◽  
Minna Kallio ◽  
Mari Lehtonen ◽  
Stella Lintonen ◽  
Päivi Peräjoki ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Dietary Fatty Acids ◽  
Two Dimensional

scholarly journals Comprehensive two-dimensional gas chromatography for the separation of fatty acids in milk

2007 ◽  
Vol 109 (8) ◽  
pp. 757-766 ◽  
Author(s):  
Bruno Vlaeminck ◽  
James Harynuk ◽  
Veerle Fievez ◽  
Philip Marriott
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Two Dimensional

Profiling of soil fatty acids using comprehensive two-dimensional gas chromatography with mass spectrometry detection

2013 ◽  
Vol 1317 ◽  
pp. 239-245 ◽  
Author(s):  
Annie Xu Zeng ◽  
Sung-Tong Chin ◽  
Antonio Patti ◽  
Philip J. Marriott
Keyword(s):  
Mass Spectrometry ◽  
Fatty Acids ◽  
Gas Chromatography ◽  
Two Dimensional ◽  
Mass Spectrometry Detection
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