Analytical and Bioanalytical Chemistry

, Volume 409, Issue 4, pp 971–978

Selective quantification of DOSS in marine sediment and sediment-trap solids by LC-QTOF-MS

  • Matt J. Perkins
  • Samantha B. Joye
  • Jennifer A. Field
Research Paper

Abstract

At the onset of the 2010 Gulf oil spill, analytical methods for the quantification of the surfactants in Corexit did not exist in the peer-reviewed literature. To date, only a single study reports the presence of bis-(2-ethylhexyl) sodium sulfosuccinate (DOSS) in deep-sea Gulf sediment collected in 2010 from a single location. There are no data on the occurrence of DOSS in association with settling solids (i.e., sediment-trap solids). To address this data gap, DOSS was initially quantified by liquid chromatography tandem quadrupole mass spectrometry (LC-MS/MS) in sediment and sediment-trap solids collected from multiple sites in the Gulf between 2010 and 2013. However, interferences confounded analyses using only a quadrupole (MS/MS) system; therefore, a LC-high mass accuracy quadruple time of flight mass spectrometry (LC-QTOF-MS) method was developed. The LC-QTOF method was validated and applied to eight representative samples of sediment and of sediment-trap solids. The presented method quantifies DOSS in solids of marine origin at concentrations above the limit of quantification of 0.23 μg kg−1 with recoveries of 97 ± 20 % (mean ± 95 CI). Gulf sediment and sediment-trap solids gave DOSS concentrations of <LOQ–25 and 1.5–6.3 μg kg−1, respectively.

Graphical Abstract

Sediment core and sediment trap materials were collected in the Gulf and analyzed for DOSS by LCQTOF.

Keywords

Corexit DOSS Dioctyl sulfosuccinate Sediment Sediment trap QTOF 

Supplementary material

216_2016_10_MOESM1_ESM.pdf (517 kb)
ESM 1(PDF 516 kb)

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Matt J. Perkins
    • 1
  • Samantha B. Joye
    • 2
  • Jennifer A. Field
    • 3
  1. 1.Department of Environmental and Molecular ToxicologyOregon State UniversityCorvallisUSA
  2. 2.Department of Marine SciencesUniversity of GeorgiaAthensUSA
  3. 3.Department of ChemistryOregon State UniversityCorvallisUSA

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