Dioctyl sulfosuccinate analysis in near-shore Gulf of Mexico water by direct-injection liquid chromatography–tandem mass spectrometry

Mathew, Johnson; Schroeder, David Lee; Zintek, Lawrence; Schupp, Caitlin R.; Kosempa, Michael G.; Zachary, Adam M.; Schupp, George C.; Wesolowski, Dennis J.

doi:10.1016/j.chroma.2012.01.088

Cited by 27 publications

(17 citation statements)

References 10 publications

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“…(Gray et al, 2010; Kujawinski et al, 2011; Mathew et al, 2012) In contrast, this LVI method required no sample preparation other than the addition of isopropanol, resulting in higher throughput of the present method. The addition of isopropanol, which ensured analyte stability in seawater, was half the dilution than that employed by Mathew et al (2012).…”

Section: Resultsmentioning

confidence: 96%

“…Since 2010, multiple analytical methods that have been developed in order to detect levels of Corexit oil dispersants in Gulf of Mexico seawater, although these studies mainly focused on DOSS as the indicator for the presence of Corexit 9500 and 9527. (Hayworth and Clement, 2012; Kujawinski et al, 2011; Mathew et al, 2012; Ramirez et al, 2013) To the best of our knowledge, analytical methods for nonionic surfactants, including Tween 80 and Tween 85,(Crescenzi et al, 1995; Petrovic and Barceló, 2001; Petrovic et al, 2002) have not been developed for seawater analysis. To fully characterize the complex mixture of the dispersant formulations, analytical methods are needed for detecting all the dispersant constituents which exhibit varying chemical properties.…”

Section: Introductionmentioning

confidence: 99%

“…Current methods to date use sample preparation steps such as solid-phase extraction (Kujawinski et al, 2011; Ramirez et al, 2013) or direct injection after sample dilution (Mathew et al, 2012; Ramirez et al, 2013). Large-volume injection liquid chromatography (LVI-LC) is an alternative to solid-phase extraction that has been demonstrated for environmental contaminants in surface water and wastewater systems (Backe et al, 2011; Busetti et al, 2012; Chiaia et al, 2008), but not yet for seawater.…”

Section: Introductionmentioning

confidence: 99%

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Trace analysis of surfactants in Corexit oil dispersant formulations and seawater

Place

Perkins

Sinclair

et al. 2016

Deep Sea Research Part II: Topical Studies in Oceanography

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After the April 2010 explosion on the Deepwater Horizon oil rig, and subsequent release of millions of barrels of oil, two Corexit oil dispersant formulations were used in unprecedented quantities both on the surface and sub-surface of the Gulf of Mexico. Although the dispersant formulations contain four classes of surfactants, current studies to date focus on the anionic surfactant, bis-(2-ethylhexyl) sulfosuccinate (DOSS). Factors affecting the integrity of environmental and laboratory samples for Corexit analysis have not been systematically investigated. For this reason, a quantitative analytical method was developed for the detection of all four classes of surfactants, as well as the hydrolysis products of DOSS, the enantiomeric mixture of α- and β-ethylhexyl sulfosuccinate (α-/β-EHSS). The analytical method was then used to evaluate which practices for sample collection, storage, and analysis resulted in high quality data. Large volume, direct injection of seawater followed by liquid chromatography tandem mass spectrometry (LC-MS/MS) minimized analytical artifacts, analysis time, and both chemical and solid waste. Concentrations of DOSS in the seawater samples ranged from 71 – 13,000 ng/L, while the nonionic surfactants including Span 80, Tween 80, Tween 85 were detected infrequently (26% of samples) at concentrations from 840 – 9100 ng/L. The enantiomers α-/β-EHSS were detected in seawater, at concentrations from 200 – 1,900 ng/L, and in both Corexit dispersant formulations, indicating α-/β-EHSS were applied to the oil spill and may be not unambiguous indicator of DOSS degradation. Best practices are provided to ensure sample integrity and data quality for environmental monitoring studies and laboratory that require the detection and quantification of Corexit-based surfactants in seawater.

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Section: Resultsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Trace analysis of surfactants in Corexit oil dispersant formulations and seawater

Place

Perkins

Sinclair

et al. 2016

Deep Sea Research Part II: Topical Studies in Oceanography

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show abstract

“…DOSS is a major component of several Corexit formulations (Mathew et al, 2012;Ramirez et al, 2013) and it can therefore be used as a chemical marker compound for these dispersants in the environment (Kujawinski et al, 2011). DOSS and MOSS are readily analyzable by ESI-MS (e.g., Kujawinski et al, 2011;Place et al, 2010, this issue), and both molecular formulae were detected in the dispersant-amended treatments even at the end of the incubation experiment ( Fig.…”

Section: Sulfur Compounds In the Dispersant-amended Treatmentsmentioning

confidence: 93%

Biodegradation of crude oil and dispersants in deep seawater from the Gulf of Mexico: Insights from ultra-high resolution mass spectrometry

Seidel

Kleindienst

Dittmar

et al. 2016

Deep Sea Research Part II: Topical Studies in Oceanography

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“…Previous publications have noted that DOSS tends to bind to many surfaces, resulting in decreased analytical signal (Kujawinski et al, 2011;Mathew et al, 2012). …”

Section: Mass Spectrometry Detectionmentioning

confidence: 99%

Novel Analytical Methodologies for the Monitoring of Traditional and Non-traditional Pollutants in different Environmental Compartments of South Florida

Ramírez¹

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Dioctyl sulfosuccinate analysis in near-shore Gulf of Mexico water by direct-injection liquid chromatography–tandem mass spectrometry

Cited by 27 publications

References 10 publications

Trace analysis of surfactants in Corexit oil dispersant formulations and seawater

Trace analysis of surfactants in Corexit oil dispersant formulations and seawater

Biodegradation of crude oil and dispersants in deep seawater from the Gulf of Mexico: Insights from ultra-high resolution mass spectrometry

Novel Analytical Methodologies for the Monitoring of Traditional and Non-traditional Pollutants in different Environmental Compartments of South Florida

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