Determination of organic priority pollutants and emerging compounds in wastewater and snow samples using multiresidue protocols on the basis of microextraction by packed sorbents coupled to large volume injection gas chromatography–mass spectrometry analysis

Prieto, Ailette; Schrader, Steffi; Moeder, Monika

doi:10.1016/j.chroma.2010.07.070

Cited by 92 publications

(33 citation statements)

References 37 publications

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“…Similar results have been reported for snow from the Italian Alps, where in urban sites the ∑PAHs was 77-290 ng/L and in a national park 20-66 ng/L [12]. Urban snow samples from bus stops and parking places in Leipzig have been reported to contain the same PAHs with concentrations of the same order of magnitude (13 PAHs excluding naphthalene, 1,607-3,822 ng/L) as in the current study [30].…”

Section: Dissolved Fractionsupporting

confidence: 89%

Characterization of AhR agonist compounds in roadside snow

et al. 2012

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Aryl hydrocarbon receptor (AhR) agonistic contaminants were identified in roadside snow samples. Snow was collected in Oslo, Norway, and compared to a background sample collected from a mountain area. The water and particulate fractions were analysed for AhR agonists using a dioxin-responsive, chemically activated luciferase expression (CALUX) cell assay and by gas chromatography coupled to high-resolution time-of-flight mass spectrometry with targeted analysis for polycyclic aromatic hydrocarbons (PAHs) and broad-spectrum non-target analysis. The AhR agonist levels in the dissolved fractions in the roadside samples were between 15 and 387 pg/L CALUX toxic equivalents (TEQ(CALUX)). An elevated AhR activity of 221 pg TEQ(CALUX) per litre was detected in the mountain sample. In the particle-bound fractions, the TEQ(CALUX) was between 1,350 and 7,390 pg/L. One possible explanation for the elevated levels in the dissolved fraction of the mountain sample could be the presence of black carbon in the roadside samples, potentially adsorbing dioxin-like compounds and rendering them unavailable for AhR interaction. No polychlorinated dibenzodioxins and dibenzofurans or polychlorinated biphenyls were detected in the samples; the occurrence of PAHs, however, explained up to 9 % of the AhR agonist activity in the samples, whilst comprehensive two-dimensional gas chromatography coupled to mass spectrometry GCxGC-ToF-Ms identified PAH derivatives such as polycyclic aromatic ketones and alkylated, nitrogen sulphur and oxygen PAHs in the particle fractions. The (large) discrepancy between the total and explained activity highlights the fact that there are other as yet unidentified AhR agonists present in the environment.

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Section: Dissolved Fractionsupporting

confidence: 89%

Characterization of AhR agonist compounds in roadside snow

et al. 2012

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“…The determination of 41 organic pollutants in waste water samples using microextraction by packed sorbent (MEPS) followed by gas chromatography-mass spectrometry (GC-MS) was described by Prieto et al [38]. C18 was used as sorbent for MEPS.…”

Section: Organic Priority Pollutants and Emerging Compounds In Wastewmentioning

confidence: 99%

Microextraction by packed sorbent (MEPS): A tutorial

Abdel‐Rehim

2011

Analytica Chimica Acta

234

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“…Microextraction by packed sorbent (MEPS) is a recently developed extraction technique [9]. This new technique has several advantages over conventional solid phase extraction, and has been also applied to the analysis of VOCs in aqueous samples [10,11].…”

Section: Introductionmentioning

confidence: 99%