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Determination of heavy metals and essential elements in nasal sprays and drops (Saline/Sea Water) and evaluation in terms of toxicity

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Abstract

Heavy metals are toxic to human health and their concentrations in drinking water are sometimes above the limits recommended by the World Health Organization (WHO). In addition to drinking water, a possible source for the intake of heavy metals is nasal sprays, which are frequently used to combat upper respiratory tract infections, especially in young children. Different types of nasal sprays are sold in pharmacies, such as saline solutions prepared from NaCl, sea water, or ocean water. In this work, Al, Sb, As, B, Cd, Cr, Co, Cu, Fe, Mn, Ni, Si, and Zn analyzes were performed on 22 saline samples with ICP-MS to determine their toxicity levels. For some samples, the toxic element concentrations were above the drinking water limits. Because nasal sprays are administered to the region close to the brain, the potential risk should be considered more fully. The accuracy of the results was tested by the standard addition method and certified reference material (CRM) analysis, which obtained recovery values for the elements of 83%-115% and 82%-108% for standard addition and CRM analysis, respectively. This is the first study to consider the risk of heavy metals in nasal sprays.

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Data availability

The datasets used and/or analyzed during the current study are available from the corresponding author (Tülin DENİZ ÇİFTÇİ) on reasonable request.

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Funding

I would like to thank Ege University Scientific Research Projects Coordination for their support in the realization of this project (17-FEN-076).

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The study conception, design, material preparation, data collection and analysis were performed by Tülin DENİZ ÇİFTÇİ. The manuscript was also written by Tülin DENİZ ÇİFTÇİ.

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Correspondence to Tülin Deniz Çiftçi.

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This research does not involve Human Participants and/or Animals.

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Responsible Editor: Mohamed M. Abdel-Daim

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Çiftçi, T.D. Determination of heavy metals and essential elements in nasal sprays and drops (Saline/Sea Water) and evaluation in terms of toxicity. Environ Sci Pollut Res 30, 96938–96947 (2023). https://doi.org/10.1007/s11356-023-29133-0

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  • DOI: https://doi.org/10.1007/s11356-023-29133-0

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