Comment on "Investigating Earth's Formation History Through Copper & Sulfur Metal-Silicate Partitioning During Core-Mantle Differentiation" by Mahan et al.
Comment on "Investigating Earth's Formation History Through Copper & Sulfur Metal-Silicate Partitioning During Core-Mantle Differentiation" by Mahan et al.
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评论《通过铜探究地球的形成历史》
DOI：
10.1029/2018jb016930
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发表时间：
2019
期刊：
影响因子：
3.4
通讯作者：
Jennings E
中科院分区：
文献类型：
--
作者：
Jennings E
要点小区域的 EPMA 分析容易出现分析伪影，例如荧光，这在测量微量元素时可能会出现问题。 (2018)，来自铜样品架的荧光铜 X 射线约占其测量的铜浓度的 70%。我们使用蒙特卡罗粒子输运模拟量化了杂散铜 X 射线对主信号的贡献
Key PointsEPMA analyses of small areas are prone to analytical artifacts such as fluorescence that can be problematic when measuring minor elementsIn the study of Mahan et al. (2018), fluoresced Cu X‐rays from the Cu sample holder account for ~70% of their measured Cu concentrationsWe quantified the contribution of spurious Cu X‐rays to the primary signal using Monte Carlo particle transport simulations