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Application of SS-CS-HR-AAS measurements for the detection of Ag nanoparticles in marine invertebrates

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Abstract

The present study describes the development of a fit-for-purpose analytical procedure for the detection of Ag NPs in different marine organisms by Solid Sampling Continuous Source High Resolution Atomic Absorption Spectrometry (SS-CS-HR-AAS). The detection is based on the observation of the Ag absorption peak and its atomization delay tad which is different for ionic Ag and Ag NPs. The temperature program was optimized in order to achieve the maximum difference between the t ad (Δtad ). The method was first developed using biota CRMs spiked with different Ag NPs standard solutions or Ag+ , at the same concentration. Then, laboratory exposure experiments were performed on mussels and marine sponges. The results showed that the developed methodology is suitable for the detection of Ag NPs for both groups of organisms, showing Δtad up to 3.1 s. The developed method is therefore a promising tool to assess the presence of AgNPs in marine invertebrates.

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Acknowledgements

The authors are grateful to Mr Angus Taylor and Mr François Oberhaensli for their assistance during exposure experiments with mussels and sponges. The agency is grateful for the support provided to its Marine Environment Laboratories by the Government of the Principality of Monaco.

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The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

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All authors contributed to the study conception and design. Material preparation and analysis were performed by AMO under the supervision of EV. The first draft of the manuscript was written by AMO. EV and OT reviewed and corrected it. All authors read and approved the final manuscript before submission.

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Correspondence to Emilia Vassileva.

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The authors have no relevant financial or non-financial interests to disclose.

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Orani, A.M., Vassileva, E. & Thomas, O.P. Application of SS-CS-HR-AAS measurements for the detection of Ag nanoparticles in marine invertebrates. Bull Environ Contam Toxicol 109, 865–871 (2022). https://doi.org/10.1007/s00128-022-03573-9

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  • DOI: https://doi.org/10.1007/s00128-022-03573-9

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