Quantitative analysis of nitrogen containing compounds in microalgae based bio-oils using comprehensive two-dimensional gas-chromatography coupled to nitrogen chemiluminescence detector and time of flight mass spectrometer

2016 ◽  
Vol 1460 ◽  
pp. 135-146 ◽  
Author(s):  
Hilal E. Toraman ◽  
Kristina Franz ◽  
Frederik Ronsse ◽  
Kevin M. Van Geem ◽  
Guy B. Marin
Keyword(s):  
Gas Chromatography ◽  
Quantitative Analysis ◽  
Mass Spectrometer ◽  
Time Of Flight ◽  
Two Dimensional ◽  
Flight Mass Spectrometer ◽  
Nitrogen Containing Compounds ◽  
Chemiluminescence Detector

scholarly journals Detailed Group-Type Characterization of Plastic-Waste Pyrolysis Oils: By Comprehensive Two-Dimensional Gas Chromatography Including Linear, Branched, and Di-Olefins

Separations ◽  
2021 ◽  
Vol 8 (7) ◽  
pp. 103
Author(s):  
Hang Dao Thi ◽  
Marko R. Djokic ◽  
Kevin M. Van Geem
Keyword(s):  
Gas Chromatography ◽  
Plastic Waste ◽  
Two Dimensional ◽  
Group Type ◽  
Flame Ionization ◽  
Type Composition ◽  
Pyrolysis Oils ◽  
Nitrogen Containing Compounds ◽  
Chemiluminescence Detector

Plastic-waste pyrolysis oils contain large amounts of linear, branched, and di-olefinic compounds. This makes it not obvious to determine the detailed group-type composition in particular to the presence of substantial amounts of N-, S-, and O-containing heteroatomic compounds. The thorough evaluation of different column combinations for two-dimensional gas chromatography (GC × GC), i.e., non-polar × polar and polar × non-polar, revealed that the second combination had the best performance, as indicated by the bi-dimensional resolution of the selected key compounds. By coupling the GC × GC to multiple detectors, such as the flame ionization detector (FID), a sulfur chemiluminescence detector (SCD), a nitrogen chemiluminescence detector (NCD), and a mass spectrometer (MS), the identification and quantification were possible of hydrocarbon, oxygen-, sulfur-, and nitrogen-containing compounds in both naphtha (C5–C11) and diesel fractions (C7–C23) originating from plastic-waste pyrolysis oils. Group-type quantification showed that large amounts of α-olefins (36.39 wt%, 35.08 wt%), iso-olefins (8.77 wt%, 9.06 wt%), and diolefins (4.21 wt%, 4.20 wt%) were present. Furthermore, oxygen-containing compounds (alcohols, ketones, and ethers) could be distinguished from abundant hydrocarbon matrix, by employing Stabilwax as the first column and Rxi-5ms as the second column. Ppm levels of sulfides, thiophenes, and pyridines could also be quantified by the use of selective SCD and NCD detectors.

scholarly journals Quantitative analysis of a brass alloy using CF-LIBS and a laser ablation time-of-flight mass spectrometer

Laser Physics ◽  
2017 ◽  
Vol 28 (1) ◽  
pp. 016002 ◽  
Author(s):  
Nasar Ahmed ◽  
M Abdullah ◽  
Rizwan Ahmed ◽  
N K Piracha ◽  
M Aslam Baig
Keyword(s):  
Quantitative Analysis ◽  
Laser Ablation ◽  
Mass Spectrometer ◽  
Time Of Flight ◽  
Brass Alloy ◽  
Ablation Time ◽  
Flight Mass Spectrometer

Drug Identification by the Application of Gas Chromatography/Time-of-Flight Mass Spectrometer Technique

1974 ◽  
Vol 19 (2) ◽  
pp. 10177J ◽  
Author(s):  
W. G. Kirchgessner ◽  
A. C. DiPasqua ◽  
W. A. Anderson ◽  
G. V. Delaney
Keyword(s):  
Gas Chromatography ◽  
Mass Spectrometer ◽  
Time Of Flight ◽  
Drug Identification ◽  
Flight Mass Spectrometer
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