Aprea Alessia, Mariani Davide, Trimigno Ester, Marcucci Camilla, Cortella Romina
Innovhub-SSI, Via G. Colombo 79, 20133, Milano, Italy.
Innovhub-SSI, Via G. Colombo 79, 20133, Milano, Italy.
Talanta. 2025 Feb 1;283:127190. doi: 10.1016/j.talanta.2024.127190. Epub 2024 Nov 8.
Worldwide attention is focused on microplastics environmental pollution, primarily for its potential negative effects on biota and human health. It is of great importance to identify standardized analytical methods to have an objective feedback about this concern. The recent regulation regarding the intentionally added microplastics content and the attention for the unintentional microplastics release are the basis of this work, whose topic is the development of an analytical method for microbeads (spheres) and microparticles (fragments) determination in certain cosmetic samples, in particular creamy samples. The method is based on Accelerated Solvent Extraction technique to remove all the sample matrix ingredients. The final suspension was then filtered on silicon membrane, for the following quali-quantitative micro-FTIR analysis, and on glass fibre membranes, for the gravimetric analysis. The method was developed for a theoretical microplastics concentration of 0.025 % (w/w) and allows a good recovery percentage. Working both by gravimetric evaluation and by micro-FTIR analysis gives more confident results and guaranties a proper identification and characterization of the filtered materials.
全球都在关注微塑料环境污染问题，主要是因为其对生物群和人类健康可能产生的负面影响。确定标准化分析方法对于客观反馈这一问题至关重要。近期关于有意添加微塑料含量的规定以及对无意微塑料释放的关注是这项工作的基础，其主题是开发一种用于测定某些化妆品样品，特别是乳霜状样品中微珠（球体）和微粒（碎片）的分析方法。该方法基于加速溶剂萃取技术来去除所有样品基质成分。然后将最终悬浮液过滤到硅膜上，用于后续的定性定量微傅里叶变换红外光谱分析，以及过滤到玻璃纤维膜上用于重量分析。该方法针对理论微塑料浓度为0.025%（w/w）进行开发，回收率良好。通过重量评估和微傅里叶变换红外光谱分析相结合的方式工作能得到更可靠的结果，并确保对过滤材料进行适当的识别和表征。
