Chemometric-based determination of polycyclic aromatic hydrocarbons in aqueous samples using ultrasound-assisted emulsification microextraction combined to gas chromatography-mass spectrometry

Journal of Chromatography. a
Mohammad AhmadvandHadi Parastar

Abstract

In the present research, ultrasonic-assisted emulsification-microextraction (USAEME) coupled with gas chromatography-mass spectrometry (GC-MS) has been proposed for analysis of thirteen environmental protection agency (EPA) polycyclic aromatic hydrocarbons (PAHs) in aqueous samples. Tetrachloroethylene was selected as extraction solvent. The main parameters of USAEME affecting the efficiency of the method were modeled and optimized using a central composite design (CCD). Under the optimum conditions (9μL for extraction solvent, 1.15% (w/v) NaCl (salt concentration) and 10min for ultrasonication time), preconcentration factor (PF) of the PAHs was in the range of 500-950. In order to have a comprehensive analysis, multivariate curve resolution-alternating least squares (MCR-ALS) as a second-order calibration algorithm was used for resolution, identification and quantification of the target PAHs in the presence of uncalibrated interferences. The regression coefficients and relative errors (REs, %) of calibration curves of the PAHs were in the satisfactory range of 0.9971-0.9999 and 1.17-6.59%, respectively. Furthermore, analytical figures of merit (AFOM) for univariate and second-order calibrations were obtained and compared. As a...Continue Reading

References

Apr 1, 2006·Journal of Chromatography. a·Mohammad RezaeeSana Berijani
Jan 28, 2010·Analytica Chimica Acta·Shayessteh Dadfarnia, Ali Mohammad Haji Shabani
Sep 11, 2010·Journal of Pharmaceutical and Biomedical Analysis·Hongyuan YanJingjing Du
Jan 17, 2012·Environmental Pollution·Marek Tobiszewski, Jacek Namieśnik
Mar 21, 2012·Chemical Research in Toxicology·Gideon St HelenNeal L Benowitz

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Citations

Jul 18, 2017·The Analyst·Graciela M Escandar, Alejandro C Olivieri
Mar 1, 2019·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Mahsa Sadat HosseininejadAhmad Jamshidi
Mar 10, 2016·Journal of the American Society for Mass Spectrometry·Elizabeth S HechtDavid C Muddiman

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