GC-MS analysis of total petroleum hydrocarbons and polycyclic aromatic hydrocarbons in seawater samples after the North Cape oil spill
We developed a gas chromatograph-mass spectrometer (GC-MS) method for measuring both total petroleum hydrocarbons (TPHs) and polycyclic aromatic hydrocarbons (PAHs) in seawater samples that were collected after the North Cope oil spill. After the samples are extracted with methylene chloride and hex...
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ftunivrhodeislan:oai:digitalcommons.uri.edu:gsofacpubs-3079 2024-02-11T10:06:50+01:00 GC-MS analysis of total petroleum hydrocarbons and polycyclic aromatic hydrocarbons in seawater samples after the North Cape oil spill Reddy, Christopher M. Quinn, James G. 1999-02-01T08:00:00Z https://digitalcommons.uri.edu/gsofacpubs/2110 https://doi.org/10.1016/S0025-326X(98)00106-4 unknown DigitalCommons@URI https://digitalcommons.uri.edu/gsofacpubs/2110 doi:10.1016/S0025-326X(98)00106-4 https://doi.org/10.1016/S0025-326X(98)00106-4 Graduate School of Oceanography Faculty Publications Gas chromatography-mass spectrometry Oil spill Polycyclic aromatic hydrocarbons Total petroleum hydrocarbons text 1999 ftunivrhodeislan https://doi.org/10.1016/S0025-326X(98)00106-4 2024-01-15T19:09:53Z We developed a gas chromatograph-mass spectrometer (GC-MS) method for measuring both total petroleum hydrocarbons (TPHs) and polycyclic aromatic hydrocarbons (PAHs) in seawater samples that were collected after the North Cope oil spill. After the samples are extracted with methylene chloride and hexane, the extracts are fractionated on silica-gel columns and then injected into a GC-MS operating in the selected-ion-monitoring (SIM) mode. The signal from the ion m/z 57 (C4H9+), which is a major ion in aliphatic compounds, is integrated throughout the chromatogram and used to calculate the amount of TPHs. The PAHs are analyzed by using distinct quantification ions during the same run. This method is faster than conventional gas chromatography techniques that use both flame ionization detectors for aliphatics and mass spectrometers for PAHs and also gives a more positive identification due to using GC-MS. Laboratory blanks, recoveries from spiked seawater, and method detection limits for TPHs and PAHs with the simplified method are comparable to conventional methods. Over 50 seawater samples were analyzed after the North Cape oil spill, and the concentrations of TPHs and total PAHs were as high as 3940 and 115 μg l-1, respectively. Text North Cape University of Rhode Island: DigitalCommons@URI North Cape ENVELOPE(165.700,165.700,-70.650,-70.650) Marine Pollution Bulletin 38 2 126 135 |
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Open Polar |
collection |
University of Rhode Island: DigitalCommons@URI |
op_collection_id |
ftunivrhodeislan |
language |
unknown |
topic |
Gas chromatography-mass spectrometry Oil spill Polycyclic aromatic hydrocarbons Total petroleum hydrocarbons |
spellingShingle |
Gas chromatography-mass spectrometry Oil spill Polycyclic aromatic hydrocarbons Total petroleum hydrocarbons Reddy, Christopher M. Quinn, James G. GC-MS analysis of total petroleum hydrocarbons and polycyclic aromatic hydrocarbons in seawater samples after the North Cape oil spill |
topic_facet |
Gas chromatography-mass spectrometry Oil spill Polycyclic aromatic hydrocarbons Total petroleum hydrocarbons |
description |
We developed a gas chromatograph-mass spectrometer (GC-MS) method for measuring both total petroleum hydrocarbons (TPHs) and polycyclic aromatic hydrocarbons (PAHs) in seawater samples that were collected after the North Cope oil spill. After the samples are extracted with methylene chloride and hexane, the extracts are fractionated on silica-gel columns and then injected into a GC-MS operating in the selected-ion-monitoring (SIM) mode. The signal from the ion m/z 57 (C4H9+), which is a major ion in aliphatic compounds, is integrated throughout the chromatogram and used to calculate the amount of TPHs. The PAHs are analyzed by using distinct quantification ions during the same run. This method is faster than conventional gas chromatography techniques that use both flame ionization detectors for aliphatics and mass spectrometers for PAHs and also gives a more positive identification due to using GC-MS. Laboratory blanks, recoveries from spiked seawater, and method detection limits for TPHs and PAHs with the simplified method are comparable to conventional methods. Over 50 seawater samples were analyzed after the North Cape oil spill, and the concentrations of TPHs and total PAHs were as high as 3940 and 115 μg l-1, respectively. |
format |
Text |
author |
Reddy, Christopher M. Quinn, James G. |
author_facet |
Reddy, Christopher M. Quinn, James G. |
author_sort |
Reddy, Christopher M. |
title |
GC-MS analysis of total petroleum hydrocarbons and polycyclic aromatic hydrocarbons in seawater samples after the North Cape oil spill |
title_short |
GC-MS analysis of total petroleum hydrocarbons and polycyclic aromatic hydrocarbons in seawater samples after the North Cape oil spill |
title_full |
GC-MS analysis of total petroleum hydrocarbons and polycyclic aromatic hydrocarbons in seawater samples after the North Cape oil spill |
title_fullStr |
GC-MS analysis of total petroleum hydrocarbons and polycyclic aromatic hydrocarbons in seawater samples after the North Cape oil spill |
title_full_unstemmed |
GC-MS analysis of total petroleum hydrocarbons and polycyclic aromatic hydrocarbons in seawater samples after the North Cape oil spill |
title_sort |
gc-ms analysis of total petroleum hydrocarbons and polycyclic aromatic hydrocarbons in seawater samples after the north cape oil spill |
publisher |
DigitalCommons@URI |
publishDate |
1999 |
url |
https://digitalcommons.uri.edu/gsofacpubs/2110 https://doi.org/10.1016/S0025-326X(98)00106-4 |
long_lat |
ENVELOPE(165.700,165.700,-70.650,-70.650) |
geographic |
North Cape |
geographic_facet |
North Cape |
genre |
North Cape |
genre_facet |
North Cape |
op_source |
Graduate School of Oceanography Faculty Publications |
op_relation |
https://digitalcommons.uri.edu/gsofacpubs/2110 doi:10.1016/S0025-326X(98)00106-4 https://doi.org/10.1016/S0025-326X(98)00106-4 |
op_doi |
https://doi.org/10.1016/S0025-326X(98)00106-4 |
container_title |
Marine Pollution Bulletin |
container_volume |
38 |
container_issue |
2 |
container_start_page |
126 |
op_container_end_page |
135 |
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1790604836459249664 |