Simultaneous determination of pesticides, polycyclic aromatic hydrocarbons and polychlorinated biphenyls in seawater and interstitial marine water samples, using stir bar sorptive extraction–thermal desorption–gas chromatography–mass spectrometry

2007 ◽  
Vol 1170 (1-2) ◽  
pp. 82-90 ◽  
Author(s):  
Erkuden Pérez-Carrera ◽  
Víctor M. León León ◽  
Abelardo Gómez Parra ◽  
Eduardo González-Mazo
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Thermal Desorption ◽  
Aromatic Hydrocarbons ◽  
Stir Bar Sorptive Extraction ◽  
Gas Chromatography Mass Spectrometry ◽  
Sorptive Extraction ◽  
Polycyclic Aromatic

scholarly journals Optimization and Validation of Thermal Desorption Gas Chromatography-Mass Spectrometry for the Determination of Polycyclic Aromatic Hydrocarbons in Ambient Air

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Iñaki Elorduy ◽  
Nieves Durana ◽  
José Antonio García ◽  
María Carmen Gómez ◽  
Lucio Alonso
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Thermal Desorption ◽  
Aromatic Hydrocarbons ◽  
Ambient Air ◽  
Gas Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry ◽  
Polycyclic Aromatic

Thermal desorption (TD) coupled with gas chromatography/mass spectrometry (TD-GC/MS) is a simple alternative that overcomes the main drawbacks of the solvent extraction-based method: long extraction times, high sample manipulation, and large amounts of solvent waste. This work describes the optimization of TD-GC/MS for the measurement of airborne polycyclic aromatic hydrocarbons (PAHs) in particulate phase. The performance of the method was tested by Standard Reference Material (SRM) 1649b urban dust and compared with the conventional method (Soxhlet extraction-GC/MS), showing a better recovery (mean of 97%), precision (mean of 12%), and accuracy (±25%) for the determination of 14 EPA PAHs. Furthermore, other 15 nonpriority PAHs were identified and quantified using their relative response factors (RRFs). Finally, the proposed method was successfully applied for the quantification of PAHs in real 8 h-samples (PM10), demonstrating its capability for determination of these compounds in short-term monitoring.

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