Bisphenol determination in UHT milk and packaging by paper spray ionization mass spectrometry
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2023
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This study evaluates the use of paper spray ionization mass spectrometry (PSI-MS) for rapid determination of bisphenol A (BPA) and bisphenol S (BPS) in UHT milk and milk packaging. The packages were analyzed by cutting the cartons into triangular shapes and submitting them to PSI-MS analysis. The milk samples were subjected to a simple liquid–liquid extraction and the supernatant was deposited onto a triangular paper that was subsequently used for PSI-MS analysis. In milk, BPS and BPA levels ranged from 60.0 to 150.8 ng mL−¹. The LOD and LOQ values were 1.5 and 4.8 ng mL−¹ for BPA, and 4.8 and 16.0 ng mL−¹ for BPS, respectively. Linearity was R2 > 0.98 for both compounds. Precision values were below 20%, and recoveries close to 100%. The PSI-MS can be used as a simple, rapid, and accurate methodology to determine bisphenols in milk and milk packaging.
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SOARES, Daniel de Almeida et al. Bisphenol determination in UHT milk and packaging by paper spray ionization mass spectrometry. Food Chemistry, Amsterdam, v. 400, e134014, 2023. DOI: 10.1016/j.foodchem.2022.134014. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0308814622019768?via%3Dihub. Acesso em: 28 jun. 2023.