感应合等离子体质谱学与基板X射线光性能之间的比较,用于大鼠组织中微量元素的暴露
Kolawole E Adesina1, Stefano A Parducci1, Joseph D Brain2
1School of Health Sciences, Purdue University, West-Lafayette, IN 47906, USA.
Journal of trace elements and minerals
|June 16, 2025
概括
台式X射线光 (XRF) 为生物组织中微量元素分析提供了诱导合等离子体质谱法 (ICP-MS) 的实用和准确的替代方案. 这种方法提供了可比量的量化,简化了复杂的毒理和环境研究.
科学领域:
- 环境科学 环境科学
- 毒理学 毒理学 毒理学
- 分析化学 分析化学
背景情况:
- 微量元素有毒物质对健康构成重大风险,并导致环境污染.
- 感应合等离子体质谱法 (ICP-MS) 是元素分析的标准,但复杂且昂贵.
- 需要更容易获得和更有效的方法来对生物样本进行元素定量.
研究的目的:
- 调查X射线光 (XRF) 作为ICP-MS替代品用于微量元素分析的可行性.
- 为了比较基板XRF和ICP-MS在老鼠器官组织中的量化能力.
- 评估用于毒理学研究的基板XRF的操作简单性和实用性.
主要方法:
- 在老鼠组织 (胃,眼睛,肝脏) 中对微量元素度 (As,Cd,Cu,Mn,Zn) 的比较分析.
- 样品使用高功率的XRF和ICP-MS进行分析.
- 统计方法包括线性回归,皮尔森相关性和布兰德-阿尔特曼分析.
主要成果:
- 在所有测量元素 (R2值从0.74到0.88) 中,在基准XRF和ICP-MS之间观察到强烈的线性回归相关性.
- 总体高的皮尔森相关系数 (r = 0.95,p ≤ 0.05) 表明这两种方法之间有很好的一致性.
- 基板XRF表现出良好的灵敏度,中位数最小检测极限为0.12μg/g,适合微量元素分析.
结论:
- 基板XRF是ICP-MS的可行和实用的替代品,用于器官组织的元素定量,特别是用于小质量样本.
- 该研究强调了基准XRF在环境和毒理学研究中具有高通量,准确的微量元素分析的潜力.
- 台式XRF可以有效地测量各种人类和生态组织中的元素.
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