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León‐Morán, Lixy; Pastor‐Belda, Marta; Campillo, Natalia; Arroyo‐Manzanares, Natalia; Torres, Carmen; Viñas, Pilar
Journal of separation science, September 2023, Letnik: 46, Številka: 17Journal Article
Hydroxylated polycyclic aromatic hydrocarbons are metabolites of persistent organic pollutants which are formed during the bioactivation process of biological matrices and whose toxicity is being studied. The aim of this work was the development of a novel analytical method for the determination of these metabolites in human tissues, known to have bioaccumulated their parent compounds. Samples were treated by salting‐out assisted liquid‐liquid extraction and the extracts were analyzed by ultra‐high performance liquid chromatography coupled to mass spectrometry with a hybrid quadrupole‐time‐of‐flight analyzer. The proposed method achieved limits of detection in the 0.15–9.0 ng/g range for the five target analytes (1‐hydroxynaphthalene, 1‐hydroxypyrene, 2‐hydroxynaphthalene, 7‐hydroxybenzoapyrene, and 9‐hydroxyphenanthrene). The quantification was achieved by matrix‐matched calibration using 2,2´‐biphenol as internal standard. For all compounds, relative standard deviation, calculated for six successive analyses, was below 12.1%, demonstrating good precision for the developed method. None of the target compounds was detected in the 34 studied samples. Moreover, an untargeted approach was applied to study the presence of other metabolites in the samples, as well as their conjugated forms and related compounds. For this objective, a homemade mass spectrometry database covering 81 compounds was created and none of them was detected in the samples.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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