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Pressurised Liquid Extraction and Liquid Chromatography–High Resolution Mass Spectrometry for the Simultaneous Determination of Phthalate Diesters and Their Metabolites in Seafood Species

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Abstract

We have developed an analytical method based on pressurised liquid extraction (PLE) followed by liquid chromatography coupled to high resolution mass spectrometry (LC-HRMS) for the simultaneous determination of five phthalate diesters and six phthalate monoesters in widely consumed seafood species. In order to obtain the highest extraction recoveries, as well as to reduce the matrix effect of such complex samples, the most important extraction parameters were optimised and several clean-up and preconcentration strategies were tested. This method provided limits of detection that ranged from 1 to 25 ng g−1 dry weight (d.w.) for most compounds in both fatty and low-fat species. Moreover, several target analytes were quantified in five seafood species (four phthalate diesters and three of their metabolites). The most abundant compounds were diethyl phthalate (DEP) and diethylhexyl phthalate (DEHP), which were quantified from 60 to 3393 ng g−1 (d.w.) and from 117 to 1562 ng g−1 (d.w.), respectively.

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Funding

The authors would like to thank the support of the Secretaria d’Universitats i Recerca del Departament d’Empresa i Coneixement de la Generalitat de Catalunya, the European Union (EU) and the European Social Fund (ESF) (2017FI_B_01116).

This work (CTQ2017-84373-R) has been financed by the Spanish Ministry of Economy and Competitiveness and the European Regional Development Fund (AEI/FEDER/UE).

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All authors contributed to the conception and design of the study. Material preparation, data collection and analysis were performed by Míriam Hidalgo-Serrano. The first draft of the manuscript was written by Míriam Hidalgo-Serrano, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Eva Pocurull.

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Míriam Hidalgo-Serrano declares that she has no conflict of interest. Francesc Borrull declares that he has no conflict of interest. Eva Pocurull declares that she has no conflict of interest. Rosa Maria Marcé declares that she has no conflict of interest.

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Hidalgo-Serrano, M., Borrull, F., Pocurull, E. et al. Pressurised Liquid Extraction and Liquid Chromatography–High Resolution Mass Spectrometry for the Simultaneous Determination of Phthalate Diesters and Their Metabolites in Seafood Species. Food Anal. Methods 13, 1442–1453 (2020). https://doi.org/10.1007/s12161-020-01759-7

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  • DOI: https://doi.org/10.1007/s12161-020-01759-7

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