从含糖样本中分离微塑料的方法方法方法
Kornelia Kadac-Czapska1, Beata Bochentyn2, Aleksandra Maślarz1
1Department of Bromatology, Faculty of Pharmacy, Medical University of Gdańsk, 80-416 Gdańsk, Poland.
Molecules (Basel, Switzerland)
|September 14, 2024
概括
研究人员优化了微塑料 (MP) 从糖溶液中分离. 最佳条件涉及5%的HCl在70°C下5分钟,然后进行过,确保有效地从分析食品中回收MP.
科学领域:
- 环境科学 环境科学
- 分析化学 分析化学
- 食品安全 食品安全
背景情况:
- 塑料生产导致了微塑料 (MP) 的环境污染.
- 人类接触MPs主要是通过通过受污染的食物和饮料摄入而发生.
- 从食品矩阵中有效地隔离MPs对于风险评估和缓解至关重要.
研究的目的:
- 确定从糖溶液中分离微塑料的最佳条件.
- 评估温度,酸类型和度对MP隔离效率的影响.
- 建立一种可靠的方法,用于食品中的MP分析.
主要方法:
- 测试使用糖溶液中的聚乙烯颗粒的分离方法.
- 使用酸性化学消化和通过各种膜过器 (尼龙,混合纤维素,纤维素酸盐) 的过,孔径为0.8和10微米.
- 使用扫描电子显微镜和μ-拉曼光谱分析温度和酸性参数的影响.
主要成果:
- 温度升高降低了溶液粘度和糖糖对MPs的附着性.
- 较高的酸度加速了糖糖的水解,有助于MP的分离.
- 确定了最佳的隔离条件:在70°C的5%化5分钟,然后进行高效的膜过.
- 优化的方法证明了高MP回收和快速过,而不会改变颗粒表面的特性.
结论:
- 建立了微塑料从基于糖的食品模拟剂中分离的最佳条件.
- 开发的方法为量化食品中的微塑料污染提供了可靠的基础.
- 这项研究有助于改善食品工业中微塑料分析的分析技术.
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