Parallel quantitation of salt dioctyl sodium sulfosuccinate (DOSS) and fingerprinting analysis of dispersed oil in aqueous samples

Yang Chun; Fieldhouse Ben; Waldie AlexanderYang ZeyuHollebone BruceLambert PatrickBeaulac Vanessa

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Parallel quantitation of salt dioctyl sodium sulfosuccinate (DOSS) and fingerprinting analysis of dispersed oil in aqueous samples

机译：Parallel quantitation of salt dioctyl sodium sulfosuccinate (DOSS) and fingerprinting analysis of dispersed oil in aqueous samples

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In many jurisdictions, dispersants are included in contingency plans as a viable countermeasure that can help reduce the overall environmental impact of marine oil spills. When used, it is imperative to monitor the progression of dispersant and oil to assess their environmental fate and behaviour. Amphiphilic salt dioctyl sodium sulfosuccinate (DOSS) is the major effective component of the most commonly available dispersants, such as Corexit (R) EC9500A. Without proper sample preparation, dispersed oil in water samples could interfere with the accurate analysis of DOSS and easily contaminate the LC-MS system. In this work, solid phase extraction (SPE) weak anion exchange (WAX) cartridges were used to separate oil and DOSS in aqueous samples. DOSS was accurately determined by liquid chromatography coupled with a high resolution Orbitrap mass spectrometer (LC-HRMS). Oil fingerprinting analysis was conducted and total petroleum hydrocarbons (TPHs), polycyclic aromatic hydrocarbons (PAHs), and petroleum biomarkers were determined by gas chromatography-flame ionization detection (GC-FID) and mass spectrometry (GC-MS). This SPE-LC/GC-MS method was used for the analysis of oil-dispersant water samples containing a mixture of Corexit (R) EC9500A and a selection of crude oils and refined petroleum products. Nearly a 100% DOSS recovery was obtained for various oil-surfactant conditions. Parallel quantitation of oils with dispersants was achieved using this method. A portion of the TPH loss was possibly attributed to oil retained by the SPE column. Chemical fingerprints and diagnostic ratios of target compounds in recovered dispersed oil overall remain unchanged compared with those of all studied oils.

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《Journal of Hazardous Materials》 |2022年第5期|129046.1-129046.12|共12页
作者
Yang Chun; Fieldhouse Ben; Waldie AlexanderYang ZeyuHollebone BruceLambert PatrickBeaulac Vanessa;
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作者单位

Environm & Climate Change Canada, Emergencies Sci & Technol Sect, Sci & Technol Branch, 335 River Rd, Ottawa, ON, Canada|Environm & Climate Change Canada, Emergencies Sci & Technol Sect, 335 River Rd, Ottawa, ON K1A 0H3, Canada;

Environm & Climate Change Canada, Emergencies Sci & Technol Sect, Sci & Technol Branch, 335 River Rd, Ottawa, ON, Canada;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
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关键词
Salt dioctyl sodium sulfosuccinate (DOSS); Oil dispersant; Solid phase extraction (SPE); Oil fingerprinting; LC-HRMS; GC-MS;

Parallel quantitation of salt dioctyl sodium sulfosuccinate (DOSS) and fingerprinting analysis of dispersed oil in aqueous samples

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