Contrasting particle size distributions and Fe isotope fractionations during nanosecond and femtosecond laser ablation of Fe minerals: Implications for LA-MC-ICP-MS analysis of stable isotopes

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• 作者：Xin-Yuan Zheng^a ; ^{xzheng75@wisc.edu} ; Brian L. Beard^a ; Seungyeol Lee^a ; ^b ; Thiruchelvi R. Reddy^a ; ^b ; Huifang Xu^a ; ^b ; Clark M. Johnson^a
• 关键词：Fe isotopes ; Laser ablation sampling ; Ns- and fs-laser comparison ; Laser ablation induced aerosol ; Laser ablation induced isotopic fractionation
• 刊名：Chemical Geology
• 出版年：2017
• 出版时间：5 February 2017
• 年：2017
• 卷：450
• 期：Complete
• 页码：235-247
• 全文大小：1887 K
• 卷排序：450

文摘

The first offline comparison of ns- and fs-laser for Fe isotope analysis. Ablation produced particle size distribution and morphology were studied. Laser ablation induced isotopic fractionation was quantified and investigated. Isotopically non-stoichiometric sampling was found for ns-laser ablation. Ablation is largely independent of samples and laser conditions for fs-laser.