Enhanced characterization of oil sands acid‐extractable organics fractions using electrospray ionization–high‐resolution mass spectrometry and synchronous fluorescence spectroscopy
Abstract The open pit oil sands mining operations north of Fort McMurray, Alberta, Canada, are accumulating tailings waste at a rate approximately equal to 4.9 million m 3 /d. Naphthenic acids are among the most toxic components within tailings to aquatic life, but structural components have largely...
Published in: | Environmental Toxicology and Chemistry |
---|---|
Main Authors: | , , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2015
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/etc.2896 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.2896 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.2896 |
id |
crwiley:10.1002/etc.2896 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/etc.2896 2024-06-23T07:52:53+00:00 Enhanced characterization of oil sands acid‐extractable organics fractions using electrospray ionization–high‐resolution mass spectrometry and synchronous fluorescence spectroscopy Bauer, Anthony E. Frank, Richard A. Headley, John V. Peru, Kerry M. Hewitt, L. Mark Dixon, D. George Canadian Water Network Natural Sciences and Engineering Research Council of Canada 2015 http://dx.doi.org/10.1002/etc.2896 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.2896 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.2896 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Toxicology and Chemistry volume 34, issue 5, page 1001-1008 ISSN 0730-7268 1552-8618 journal-article 2015 crwiley https://doi.org/10.1002/etc.2896 2024-06-13T04:23:54Z Abstract The open pit oil sands mining operations north of Fort McMurray, Alberta, Canada, are accumulating tailings waste at a rate approximately equal to 4.9 million m 3 /d. Naphthenic acids are among the most toxic components within tailings to aquatic life, but structural components have largely remained unidentified. In the present study, electrospray ionization high‐resolution mass spectrometry (ESI‐HRMS) and synchronous fluorescence spectroscopy (SFS) were used to characterize fractions derived from the distillation of an acid‐extractable organics (AEO) mixture isolated from oil sands process‐affected water (OSPW). Mean molecular weights of each fraction, and their relative proportions to the whole AEO extract, were as follows: fraction 1: 237 Da, 8.3%; fraction 2: 240 Da, 23.8%; fraction 3: 257 Da, 26.7%; fraction 4: 308 Da, 18.9%; fraction 5: 355 Da, 10.0%. With increasing mean molecular weight of the AEO fractions, a concurrent increase occurred in the relative abundance of nitrogen‐, sulfur‐, and oxygen‐containing ions, double‐bond equivalents, and degree of aromaticity. Structures present in the higher‐molecular‐weight fractions (fraction 4 and fraction 5) suggested the presence of heteroatoms, dicarboxyl and dihydroxy groups, and organic acid compounds with the potential to function as estrogens. Because organic acid compositions become dominated by more recalcitrant, higher‐molecular‐weight acids during natural degradation, these findings are important in the context of oil sands tailings pond water remediation. Environ Toxicol Chem 2015;34:1001–1008. © 2015 SETAC Article in Journal/Newspaper Fort McMurray Wiley Online Library Canada Fort McMurray Environmental Toxicology and Chemistry 34 5 1001 1008 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract The open pit oil sands mining operations north of Fort McMurray, Alberta, Canada, are accumulating tailings waste at a rate approximately equal to 4.9 million m 3 /d. Naphthenic acids are among the most toxic components within tailings to aquatic life, but structural components have largely remained unidentified. In the present study, electrospray ionization high‐resolution mass spectrometry (ESI‐HRMS) and synchronous fluorescence spectroscopy (SFS) were used to characterize fractions derived from the distillation of an acid‐extractable organics (AEO) mixture isolated from oil sands process‐affected water (OSPW). Mean molecular weights of each fraction, and their relative proportions to the whole AEO extract, were as follows: fraction 1: 237 Da, 8.3%; fraction 2: 240 Da, 23.8%; fraction 3: 257 Da, 26.7%; fraction 4: 308 Da, 18.9%; fraction 5: 355 Da, 10.0%. With increasing mean molecular weight of the AEO fractions, a concurrent increase occurred in the relative abundance of nitrogen‐, sulfur‐, and oxygen‐containing ions, double‐bond equivalents, and degree of aromaticity. Structures present in the higher‐molecular‐weight fractions (fraction 4 and fraction 5) suggested the presence of heteroatoms, dicarboxyl and dihydroxy groups, and organic acid compounds with the potential to function as estrogens. Because organic acid compositions become dominated by more recalcitrant, higher‐molecular‐weight acids during natural degradation, these findings are important in the context of oil sands tailings pond water remediation. Environ Toxicol Chem 2015;34:1001–1008. © 2015 SETAC |
author2 |
Canadian Water Network Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
Bauer, Anthony E. Frank, Richard A. Headley, John V. Peru, Kerry M. Hewitt, L. Mark Dixon, D. George |
spellingShingle |
Bauer, Anthony E. Frank, Richard A. Headley, John V. Peru, Kerry M. Hewitt, L. Mark Dixon, D. George Enhanced characterization of oil sands acid‐extractable organics fractions using electrospray ionization–high‐resolution mass spectrometry and synchronous fluorescence spectroscopy |
author_facet |
Bauer, Anthony E. Frank, Richard A. Headley, John V. Peru, Kerry M. Hewitt, L. Mark Dixon, D. George |
author_sort |
Bauer, Anthony E. |
title |
Enhanced characterization of oil sands acid‐extractable organics fractions using electrospray ionization–high‐resolution mass spectrometry and synchronous fluorescence spectroscopy |
title_short |
Enhanced characterization of oil sands acid‐extractable organics fractions using electrospray ionization–high‐resolution mass spectrometry and synchronous fluorescence spectroscopy |
title_full |
Enhanced characterization of oil sands acid‐extractable organics fractions using electrospray ionization–high‐resolution mass spectrometry and synchronous fluorescence spectroscopy |
title_fullStr |
Enhanced characterization of oil sands acid‐extractable organics fractions using electrospray ionization–high‐resolution mass spectrometry and synchronous fluorescence spectroscopy |
title_full_unstemmed |
Enhanced characterization of oil sands acid‐extractable organics fractions using electrospray ionization–high‐resolution mass spectrometry and synchronous fluorescence spectroscopy |
title_sort |
enhanced characterization of oil sands acid‐extractable organics fractions using electrospray ionization–high‐resolution mass spectrometry and synchronous fluorescence spectroscopy |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1002/etc.2896 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.2896 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.2896 |
geographic |
Canada Fort McMurray |
geographic_facet |
Canada Fort McMurray |
genre |
Fort McMurray |
genre_facet |
Fort McMurray |
op_source |
Environmental Toxicology and Chemistry volume 34, issue 5, page 1001-1008 ISSN 0730-7268 1552-8618 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/etc.2896 |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
34 |
container_issue |
5 |
container_start_page |
1001 |
op_container_end_page |
1008 |
_version_ |
1802644310547496960 |