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在饮用水中同时确定六种微塑料,采用热解气色谱法/质谱法
Mingming Yin1, Jingli Fan1, Gang Cheng1
1Food Laboratory of Zhongyuan, Henan, China.
Analytical methods : advancing methods and applications
|March 2, 2026
概括
这项研究引入了一种新方法,用于检测饮用水中的六种微塑料 (MPs),使用膜过和Py-GC/MS. 经过验证的技术准确地量化了MP,为水质监测提供了一个解决方案.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 分析水质 分析水质
背景情况:
- 饮用水中的微塑料 (MP) 污染是一个日益严重的环境和健康问题.
- 准确的检测和量化方法对于评估各种水源中的MP水平至关重要.
研究的目的:
- 开发和验证饮用水中六种关键微塑料 (聚乙烯,聚烯,聚烯,聚乙烯二甲酸盐,聚甲基甲酸盐和聚乙烯) 的同时分析方法.
- 建立一种可靠的方法,用气溶解气体染色学/质谱学 (Py-GC/MS) 来定量检测MP.
主要方法:
- 不钢膜过用于从饮用水样本中富含MP的方法.
- 热解气色谱法/质谱法 (Py-GC/MS) 用于对特征片离子进行定性和定量分析.
- 仪表参数和预处理步骤的优化确保了方法效率.
主要成果:
- 开发的方法实现了广泛的线性范围和低检测极限 (LOD:0.012-0.40 μg L−1) 和定量 (LOQ:0.039-1.32 μg L−1).
- 平均恢复率在69.73%至111.21%之间,相对标准偏差 (RSD) 在2.78%至12.56%之间.
- 该方法成功应用于分析34个现实世界水样 (地下水,自来水,瓶装水).
结论:
- 已经建立了一种可靠且经过验证的分析方法,用于同时检测和量化饮用水中的六种主要微塑料.
- 这种方法为监测饮用水供应中的微塑料污染提供了有价值的工具.
- 这些发现有助于更好地了解基本水资源中微塑料的存在.
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