scholarly journals Highlighting the Effects of Co-eluting Interferences on Compound-Specific Stable Isotope Analysis of Polycyclic Aromatic Hydrocarbons by Using Comprehensive Two-Dimensional Gas Chromatography

ChemPlusChem ◽  
2014 ◽  
Vol 79 (6) ◽  
pp. 804-812 ◽  
Author(s):  
Caroline Gauchotte-Lindsay ◽  
Laura A. McGregor ◽  
Antoine Assal ◽  
Russell Thomas ◽  
Robert M. Kalin
Keyword(s):  
Gas Chromatography ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Aromatic Hydrocarbons ◽  
Isotope Analysis ◽  
Two Dimensional ◽  
Polycyclic Aromatic

scholarly journals Analysis of Polycyclic Aromatic Hydrocarbons in Ambient Aerosols by Using One-Dimensional and Comprehensive Two-Dimensional Gas Chromatography Combined with Mass Spectrometric Method: A Comparative Study

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Yun Gyong Ahn ◽  
So Hyeon Jeon ◽  
Hyung Bae Lim ◽  
Na Rae Choi ◽  
Geum-Sook Hwang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Organic Compounds ◽  
Aromatic Hydrocarbons ◽  
Anthropogenic Sources ◽  
Chemical Compositions ◽  
Mass Spectrometric Method ◽  
Two Dimensional ◽  
Polycyclic Aromatic

Advanced separation technology paired with mass spectrometry is an ideal method for the analysis of atmospheric samples having complex chemical compositions. Due to the huge variety of both natural and anthropogenic sources of organic compounds, simultaneous quantification and identification of organic compounds in aerosol samples represents a demanding analytical challenge. In this regard, comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry (GC×GC-TOFMS) has become an effective analytical method. However, verification and validation approaches to quantify these analytes have not been critically evaluated. We compared the performance of gas chromatography with quadrupole mass spectrometry (GC-qMS) and GC×GC-TOFMS for quantitative analysis of eighteen target polycyclic aromatic hydrocarbons (PAHs). The quantitative obtained results such as limits of detection (LODs), limits of quantification (LOQs), and recoveries of target PAHs were approximately equivalent based on both analytical methods. Furthermore, a larger number of analytes were consistently identified from the aerosol samples by GC×GC-TOFMS compared to GC-qMS. Our findings suggest that GC×GC-TOFMS would be widely applicable to the atmospheric and related sciences with simultaneous target and nontarget analysis in a single run.

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