Simultaneous determination of alkylbenzenesulfonates and dialkyltetralinsulfonates in water by liquid chromatography

Crescenzi, Carlo; Corcia, Antonio Di; Marchiori, Enrico; Samperi, Roberto; Marcomini, Antonio

doi:10.1016/0043-1354(95)00209-x

Cited by 29 publications

(19 citation statements)

References 12 publications

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“…The field application of specific methods based on high-pressure liquid chromatography (HPLC) coupled with both fluorescence and mass spectrometry detectors [19][20][21][22] for the determination of surfactants, permitted the disclosure of the occurrence and distribution of LAS, NPE, and their major metabolites (sulphophenylcarboxylates, SPC; NP and carboxylated nonylphenol polyethoxylates, NPEC, respectively) in the Venice lagoon. Concentrations of these 'molecular markers', in the 1.4-14 µg/l range and 1.2-6.8 µg/l for LAS and NPE, respectively [23], revealed a regular re-distribution of municipal and industrial effluents inside the lagoon due to the distinctive hydrodynamics of this ecosystem.…”

Section: Analytical and Environmental Chemistrymentioning

confidence: 99%

Analytical and Environmental Chemistry in the Framework of Risk Assessment and Management: The Lagoon of Venice as a Case Study

Pojana¹,

Critto²,

Micheletti³

et al. 2003

Chimia

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Prevention of toxic pollutant discharge and remediation of contaminated sediments and soils are topics increasingly addressed by the scientific community and the stakeholders. The research activity carried out on the lagoon of Venice highlights the crucial role played by analytical and environmental chemistry in assessing the environmental behavior of chemicals (i.e. occurrence level, transformation, ultimate fate) and exposure of human and environmental targets to pollutants. The extrapolation from analytical data to decisional steps was accomplished by data treatment (descriptive and multivariate statistics, spatial statistics), environmental modeling (e.g. partitioning bioaccumulation models and linear regression models), environmental risk assessment (ERA), and a GIS-based Decision Support System (DSS). Results obtained by this integrated approach supported analytical and environmental chemistry by improving the selection of priority pollutants, optimizing sampling design, and identifying critical environmental pathways. Both uncertainty minimization and cost saving of the overall decision process could be achieved. Selected results are presented here on the application of the proposed approach to the contaminated sediments of the lagoon of Venice and to the brownfield of the Porto Marghera industrial district. Both well-known persistent pollutants (e.g. polychlorinated dioxins/furans (PCDD/Fs), polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), metals and metalloids, and aromatic surfactants and their metabolites), as well as new classes of pollutants (e.g. endocrine disrupting compounds, EDCs) were investigated. The analytical data indicated that the most persistent and toxic organic and inorganic chemicals were found mainly in bottom sediments (especially those near the Porto Marghera industrial district), while substances such as surfactants and their metabolites and EDCs occurred mainly in water and were redistributed over the whole lagoon. Exposure characterization allowed Environmental Risk Assessment (ERA) to be undertaken, including the estimation of risk for both human and environmental health. The ERA procedure, developed according to a tiered approach, was applied to contaminated soils of the Porto Marghera industrial district. The ecological risk associated with contaminated lagoon sediments for the benthic community and aquatic food web was also assessed, resulting in a significant risk posed especially by mercury, cadmium and PAHs. Finally, a risk-based decision support system (DSS) for the rehabilitation of the Porto Marghera contaminated site was developed, which included environmental risk and remediation technologies

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Section: Analytical and Environmental Chemistrymentioning

confidence: 99%

Analytical and Environmental Chemistry in the Framework of Risk Assessment and Management: The Lagoon of Venice as a Case Study

Pojana¹,

Critto²,

Micheletti³

et al. 2003

Chimia

Self Cite

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“…Despite effective removal during wastewater treatment LAS occurs in surface waters (2)(3)(4)(5)(6)(7). Consequently, aquatic organisms are exposed to LAS.…”

Section: Introductionmentioning

confidence: 99%

Bioaccumulation of LAS in Feral Fish Studied by a Novel LC-MS/MS Method

Tolls

Samperi

Corcia

2002

Environ. Sci. Technol.

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The extent of bioaccumulation of linear alkylbenzene sulfonate (LAS) in feral organisms is presently unknown. To enable LAS determination in biota samples, LAS and its coproducts (methylbranched LAS, dialkyltetralin sulfonates) are extracted from tissues using matrix solid-phase dispersion, isolated by strong anion exchange chromatography and determined by HPLC-electrospray-tandem mass spectrometry. All analytes were quantified in sediment dwelling Tubifex sp. with the sum of the concentrations exceeding 1 micromol/g. Since a portion of LAS was present adsorbed to solids in the guts, the actual body residue was lower than reported lethal LAS body residues. The concentrations of individual constituents in bream muscle samples from the river Saar and fathead minnows caged in the river Arrone ranged up to 2 nmol/g. The apparent bioaccumulation factors in the caged fish are consistently higher than laboratory data, presumably due to a combination of LAS present in the guts adsorbed to suspended material, coingestion of LAS with bacterial detritus, and depressed metabolic activity due to sublethal effects. Given the small deviation between laboratory and field bioaccumulation data and the high detection frequency (> 90%) of C(13)-2- and C13-iso-LAS, the latter two constituents are suitable markers for LAS contamination in fish.

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“…Ion-exchange HPLC is useful in identifying surfactant classes but inefficient in separating LAS homologues and isomers [18,24]. Isocratic [13,17] and gradient [14-16, 19-22, 25, 26, 33] procedures with spectrophotometric [15,16,20,21], fluorimetric [13,16,17,19,20,22,25,33] and mass spectrometric [14,[26][27][28]33] detection have been described in reversed-phase HPLC. For instance, the LAS homologues can be resolved using a C 8 column and a mobile phase containing sodium perchlorate in methanol/water [17], while a C 18 column and a mobile phase containing sodium perchlorate in acetonitrile/water may be used to separate the isomers [12,15,[19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Separation of homologues and isomers of linear alkylbenzenesulfonates by capillary electrophoresis with sodium dodecyl sulfate, carboxylic acids and bile salts

2003

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The ability of several anionic compounds, including carboxylic and dicarboxylic acids, sodium dodecyl sulfate (SDS), and sodium deoxycholate (SDC) and other bile salts, to separate the C(10)-C(13) homologues and the corresponding 20 positional isomers of linear alkylbenzenesulfonates (LAS) by capillary electrophoresis was studied. Up to 19 peaks and a shoulder were observed with a background electrolyte (BGE) containing 10 mM phosphate (pH 6.8), 30% acetonitrile and 40 mM SDS, and 18 peaks were obtained with a BGE containing 10 mM borate (pH 9), 40% ethanol and 40 mM palmitic acid (PA). Resolution increased with the alkyl chain length of the carboxylic acid. Dicarboxylic acids with a short alkyl chain, as azelaic acid, were useful to separate the homologues without distinguishing between the isomers. Up to 16 peaks and a shoulder were distinguished with SDC. Resolution decreased with the other bile salts. The 6-C(11)/5-C(11) isomer pair was better resolved with SDC than with SDS, and the 2-C(12) isomer was isolated using both PA and SDC, but not with SDS. Only the 7-C(13)/6-C(13) pair could not be resolved with any of the discriminating agents used.

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Simultaneous determination of alkylbenzenesulfonates and dialkyltetralinsulfonates in water by liquid chromatography

Cited by 29 publications

References 12 publications

Analytical and Environmental Chemistry in the Framework of Risk Assessment and Management: The Lagoon of Venice as a Case Study

Analytical and Environmental Chemistry in the Framework of Risk Assessment and Management: The Lagoon of Venice as a Case Study

Bioaccumulation of LAS in Feral Fish Studied by a Novel LC-MS/MS Method

Separation of homologues and isomers of linear alkylbenzenesulfonates by capillary electrophoresis with sodium dodecyl sulfate, carboxylic acids and bile salts

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