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Tytuł pozycji:

Characterization of raw and ozonated oil sands process water utilizing atmospheric pressure gas chromatography time-of-flight mass spectrometry combined with solid phase microextractionun.

Tytuł :
Characterization of raw and ozonated oil sands process water utilizing atmospheric pressure gas chromatography time-of-flight mass spectrometry combined with solid phase microextractionun.
Autorzy :
Huang R; Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada.
Yang L; Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada.
How ZT; Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada.
Fang Z; Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada; State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China.
Bekele A; Upstream Research, Imperial Oil Resources Limited, Calgary, Alberta, T2C 5R2, Canada.
Letinski DJ; ExxonMobil Biomedical Sciences, Inc., Annandale, NJ, 08801, USA.
Redman AD; ExxonMobil Biomedical Sciences, Inc., Annandale, NJ, 08801, USA.
Gamal El-Din M; Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada. Electronic address: .
Pokaż więcej
Źródło :
Chemosphere [Chemosphere] 2021 Mar; Vol. 266, pp. 129017. Date of Electronic Publication: 2020 Nov 21.
Typ publikacji :
Journal Article
Język :
English
Imprint Name(s) :
Publication: Oxford : Elsevier Science Ltd
Original Publication: Oxford, New York, : Pergamon Press.
MeSH Terms :
Oil and Gas Fields*
Water Pollutants, Chemical*/analysis
Atmospheric Pressure ; Carboxylic Acids/analysis ; Gas Chromatography-Mass Spectrometry ; Water
Contributed Indexing :
Keywords: APGC-TOF-MS; Composition analysis; Correlation; Oil sands process water; SPME
Substance Nomenclature :
0 (Carboxylic Acids)
0 (Water Pollutants, Chemical)
059QF0KO0R (Water)
Entry Date(s) :
Date Created: 20201202 Date Completed: 20210113 Latest Revision: 20210113
Update Code :
20210210
DOI :
10.1016/j.chemosphere.2020.129017
PMID :
33261842
Czasopismo naukowe
This work describes a novel application of atmospheric pressure gas chromatography time-of-flight mass spectrometry (APGC-TOF-MS) combined with solid-phase microextraction (SPME) for the simultaneous analysis of hydrocarbons and naphthenic acids (NAs) species in raw and ozone-treated oil sands process water (OSPW). SPME method using polydimethylsiloxane (PDMS)-coated fibers was validated using gas chromatography with flame ionization detector (GC-FID) to ensure the SPME extractions were operated appropriately. The ionization pathways of the hydrocarbon species in OSPW in the APGC source were verified by analyzing a mixture of eight polyaromatic hydrocarbons which were ionized primarily via charge transfer to produce [M + ] while NAs in OSPW were found to be ionized through protonation to generate [MH + ] in the wet APGC source. SPME/APGC-TOF-MS analysis demonstrated a different composition profile in OSPW #1, with 74.5% of hydrocarbon species, 23.4% of O 2 -NAs, and 2.1% of the oxidized NA species at extraction pH 2.0 compared with that obtained by UPLC-TOF-MS analysis (36.9% of O 2 -NAs, 26.8% of O 3 -NAs, 24.9% of O 4 -NAs, 9.1% of O 5 -NAs, 2.3% of O 6 -NAs). Moreover, the peak areas of the total NAs and the total peak areas of NAs + hydrocarbons measured by SPME/APGC-TOF-MS correlated excellently with the total NA concentration determined by UPLC-TOF-MS (R 2  = 0.90) and the concentrations of the total acid-extractable organics determined by SPME/GC-FID (R 2  = 0.98), respectively. APGC-TOF-MS integrated with the SPME techniques could extend the range of target compounds and be a promising alternative to evaluate and characterize NAs and hydrocarbon in different water types.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)

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