Electron Absorption Detectors and Technique for Use in Quantitative and Qualitative Analysis by Gas Chromatography.

1963 ◽  
Vol 35 (4) ◽  
pp. 474-481 ◽  
Author(s):  
J. E. Lovelock
2014 ◽  
Vol 1369 ◽  
pp. 147-160 ◽  
Author(s):  
Chrysoula Michailof ◽  
Themistoklis Sfetsas ◽  
Stylianos Stefanidis ◽  
Konstantinos Kalogiannis ◽  
Georgios Theodoridis ◽  
...  

2021 ◽  
Vol 50 (1) ◽  
pp. 91-104
Author(s):  
Liliana Mesa ◽  
José Falcón ◽  
Alexander Mulet ◽  
Juan Castellanos

The coasts of Cuba are exposed to damage caused by the contamination by petroleum hydrocarbons. The coastal strip of the Gulf of Santiago de Cuba is an example of natural resources deterioration due to this contamination, which appears as one of its main environmental problems. In the present work, using gas chromatography, quantitative and qualitative analysis were performed based on the retention time values and the area under the chromatogram curve, which allowed characterizing the degree of contamination at four points of the bay of Santiago de Cuba: playa La Estrella (P1), “Guillermón Moncada” Port (P2) “Hermanos Díaz” Oil Refinery (P3), “Antonio Maceo” Thermoelectric Power Plant RENTE (P4). Retention times of individual peaks in chromatograms of individual samples with several standards, thus obtaining the types of hydrocarbons present at each point, with points P2 and P3 being the ones with the highest pollutant and the highest concentration by peak height. Fuel oil turned out to be the most polluting agent present in the bay.


Foods ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 580 ◽  
Author(s):  
Mariosimone Zoccali ◽  
Barbara Giocastro ◽  
Ivana L. Bonaccorsi ◽  
Alessandra Trozzi ◽  
Peter Q. Tranchida ◽  
...  

The present research is focused on the in-depth qualitative analysis of three types of lime essential oil (EO), viz., Key (A and B) and Persian, using the off-line combination of normal phase high performance liquid chromatography (NP-HPLC) and comprehensive two-dimensional gas chromatography–quadrupole mass spectrometry (GC × GC-QMS). The first analytical dimension (NP-HPLC) was exploited for the isolation of the hydrocarbon constituents from the oxygenated ones. Each fraction was then reduced in volume and analyzed using (cryogenic modulation) GC × GC-QMS. Peak assignment was carried out through the combined use of mass spectral database and linear retention index matching processes. The powerful four-dimensional technology enabled the separation and identification of a very high number (153) of lime essential oil volatile compounds.


Chemosphere ◽  
2014 ◽  
Vol 116 ◽  
pp. 98-103 ◽  
Author(s):  
Jonathan D. Byer ◽  
Grazina Pacepavicius ◽  
Michel Lebeuf ◽  
R. Stephen Brown ◽  
Sean Backus ◽  
...  

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