Tisler Selina, Kristiansen Nastacha, Christensen Jan H
Analytical Chemistry Group, Department of Plant and Environmental Science, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C 1871, Denmark.
Analytical Chemistry Group, Department of Plant and Environmental Science, University of Copenhagen, Thorvaldsensvej 40, Frederiksberg C 1871, Denmark.
J Hazard Mater. 2024 Dec 5;480:136391. doi: 10.1016/j.jhazmat.2024.136391. Epub 2024 Nov 12.
Estimating the chemical hazards of drinking water stored in reusable plastic bottles is challenging due to the numerous intentionally and unintentionally added chemicals. To address this, we developed a broad screening strategy using evaporation enrichment and liquid chromatography high-resolution mass spectrometry (LC-HRMS) to evaluate migration of non-volatile chemicals from various reusable plastic bottles. The study analyzed a wide range of materials, revealing significant variability in chemical profiles across different bottle types. Over 70 % of nearly 1000 unknown compounds were unique to specific bottles. Silicone, HDPE, LDPE, and PP bottles showed the highest migration rates, with silicone releasing the most unknowns, but also phthalates and plasticizers. PP bottles exhibited concerning migration of clarifying agents and bisphenol A derivatives. In contrast, PS, PET, PETG, and PCTG had minimal migration, indicating lower health risks. These findings highlight the need for comprehensive assessments of plastic materials to improve consumer safety.
由于存在大量有意和无意添加的化学物质，评估储存在可重复使用塑料瓶中的饮用水的化学危害具有挑战性。为了解决这个问题，我们开发了一种广泛的筛选策略，利用蒸发富集和液相色谱高分辨率质谱（LC-HRMS）来评估各种可重复使用塑料瓶中不挥发化学物质的迁移情况。该研究分析了多种材料，揭示了不同瓶型的化学特征存在显著差异。近1000种未知化合物中，超过70%是特定瓶子所特有的。硅胶、高密度聚乙烯（HDPE）、低密度聚乙烯（LDPE）和聚丙烯（PP）瓶的迁移率最高，硅胶释放的未知物最多，同时还有邻苯二甲酸盐和增塑剂。PP瓶表现出澄清剂和双酚A衍生物令人担忧的迁移情况。相比之下，聚苯乙烯（PS）、聚对苯二甲酸乙二酯（PET）、聚对苯二甲酸乙二醇酯二醇改性共聚酯（PETG）和聚对苯二甲酸环己烷二甲醇酯（PCTG）的迁移量最小，表明健康风险较低。这些发现凸显了对塑料材料进行全面评估以提高消费者安全性的必要性。
