通过热解气色谱法/质谱法 (Py-GC/MS) 检测和量化中的微塑料
Jiufeng Li1, Kuancheng Wang1, Zhiqi Lin1
1Department of Environmental Health, School of Public Health, NHC Key Laboratory of Health Technology Assessment, Key Laboratory of Public Health Safety of the Ministry of Education, Fudan University, Shanghai 200032, China.
Journal of chromatography. A
|March 21, 2025
概括
一种新方法准确量化了中的微塑料,揭示了它们在所有样品中的存在. 这项研究促进了对婴儿暴露于环境污染物和潜在健康风险的理解.
科学领域:
- 环境科学 环境科学
- 分析化学 分析化学
- 毒理学 毒理学 毒理学
背景情况:
- 微塑料是人类生物样本中发现的无处不在的环境污染物.
- 有限的分析方法阻碍了对微塑料有害健康影响的理解,特别是在婴儿身上.
- 是评估早期对环境污染物的暴露的关键矩阵.
研究的目的:
- 开发和验证一种用于量化8种常见微塑料的气溶解染色学/质谱法 (Py-GC/MS) 方法.
- 为了评估人类样本中的微塑料污染.
主要方法:
- 墨样本经过了酸性消化和过以提取微塑料.
- 微塑料被使用热解气体染色学/质谱学 (Py-GC/MS) 分析.
- 方法验证包括线性,恢复率和精度评估.
主要成果:
- 开发的Py-GC/MS方法在所有八种目标微塑料中都显示出出色的线性 (R2>0.99).
- 康复率在65.24%至114.27%之间,相对标准偏差 (RSD) 在2.16%至14.85%.
- 在60个美样本中检测到所有八种微塑料,其度从1.60×10−5到1.53×103μg/g.
结论:
- 一种强大的Py-GC/MS方法已成功开发和验证,用于在中量化微塑料.
- 该研究通过分析证实了新生儿中广泛存在的微塑料.
- 该方法为评估婴儿暴露在微塑料和相关健康风险方面提供了至关重要的工具.
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