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商用口罩:首次发现微量元素

Jesse R Ingham1, George L Donati1, Liliya Douvris2

  • 1Department of Chemistry, Wake Forest University, Salem Hall, Box 7486, Winston-Salem, NC 27109, USA.

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概括

商业口罩可能会出有毒的微量元素,如,铜和. 一个样本显示铜含量超过安全限量的109倍,表明这些牙科设备的潜在健康风险.

关键词:
在ICP-MS中,使用的是ICP-MS.在ICP-OESES中.质量控制 质量控制微量元素中的微量元素.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 分析化学 分析化学
  • 毒理学 毒理学 毒理学

背景情况:

  • 美国牙医协会推口罩用于预防口腔和面部伤害.
  • 人们担心,口罩聚合物可能会从口罩聚合物中出有害物质进入使用者的身体.

研究的目的:

  • 分析商用口罩是否存在有毒的微量元素.
  • 开发和验证用于检测这些元素的分析方法.

主要方法:

  • 开发了一种使用封闭容器微波辅助消化和基于等离子体的原子光谱学的方法.
  • 量化 (Cd),铜 (Cu) 和 (Pb),使用感应合等离子体质谱法 (ICP-MS).
  • 用经过认证的参考材料和添加/回收实验验证实了该方法.

主要成果:

  • 在分析的口罩样本中,检测到四个Cd,Cu和Pb.
  • 一个样本的含量比已确定的安全限值高109倍.
  • 大多数样本的元素含量低于该方法的量化极限.

结论:

  • 商业口罩可能含有有毒的微量元素,造成潜在的健康风险.
  • 强调需要在口罩制造过程中改善污染控制.
  • 需要进一步的研究来评估从口罩中接触微量元素的长期健康影响.