Fate and behavior of oil sands naphthenic acids in a pilot-scale treatment wetland as characterized by negative-ion electrospray ionization Orbitrap mass spectrometry

2018 ◽  
Vol 631-632 ◽  
pp. 829-839 ◽  
Author(s):  
Chukwuemeka Ajaero ◽  
Kerry M. Peru ◽  
Monique Simair ◽  
Vanessa Friesen ◽  
Gwen O'Sullivan ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Oil Sands ◽  
Pilot Scale ◽  
Naphthenic Acids ◽  
Negative Ion ◽  
Treatment Wetland ◽  
Orbitrap Mass Spectrometry ◽  
And Behavior ◽  
Fate And Behavior

scholarly journals Determination of Dissolved Naphthenic Acids in Natural Waters by Using Negative-Ion Electrospray Mass Spectrometry

2002 ◽  
Vol 85 (1) ◽  
pp. 182-187 ◽  
Author(s):  
John V Headley ◽  
Kerry M Peru ◽  
Dena W Mcmartin ◽  
Marcus Winkler
Keyword(s):  
Mass Spectrometry ◽  
Oil Sands ◽  
Natural Waters ◽  
Solid Phase ◽  
Extraction Procedure ◽  
Naphthenic Acids ◽  
Negative Ion ◽  
Ionization Mass ◽  
Toxic Substances ◽  
Solid Phase Extraction Procedure

Abstract Naphthenic acids (NAs) have been implicated as some of the most toxic substances in oil sands leachates and identified as priority substances impacting on aquatic environments. As a group of compounds, NAs are not well characterized and comprise a large group of saturated aliphatic and alicyclic carboxylic acids found in hydrocarbon deposits (petroleum, oil sands bitumen, and crude oils). Described is an analytical method using negative-ion electrospray ionization mass spectrometry (ES/MS) of extracts. Preconcentration was achieved by using a solid-phase extraction procedure utilizing a crosslinked polystyrene-based polymer with acetonitrile elution. Recovery of the Fluka Chemicals NA mixture was highly pH-dependent, with 100% recovery at pH 3.0, but only 66 and 51% recoveries at pHs 7 and 9, respectively. The dissolved phase of the NA was very dependent on sample pH. It is thus critical to measure the pH and determine the appropriate mass profiles to identify NAs in natural waters. The ES/MS analytical procedure proved to be a fast and sensitive method for the recovery and detection of NAs in natural waters, with a detection limit of 0.01 mg/L.

Characterization of Oil Sands Process-Affected Waters by Liquid Chromatography Orbitrap Mass Spectrometry

2013 ◽  
Vol 47 (10) ◽  
pp. 5504-5513 ◽  
Author(s):  
Alberto S. Pereira ◽  
Subir Bhattacharjee ◽  
Jonathan W. Martin
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Oil Sands ◽  
Orbitrap Mass Spectrometry
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