A New Multielement Method for LA-ICP-MS Data Acquisition from Glacier Ice Cores,Environmental Science & Technology

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A New Multielement Method for LA-ICP-MS Data Acquisition from Glacier Ice Cores
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2017-11-09 00:00:00 , DOI: 10.1021/acs.est.7b03950
Nicole E. Spaulding ₁ , Sharon B. Sneed ₁ , Michael J. Handley ₁ , Pascal Bohleber ₁ , Andrei V. Kurbatov ₁ , Nicholas J. Pearce ₂ , Tobias Erhardt ₃ , Paul A. Mayewski ₁

Affiliation

To answer pressing new research questions about the rate and timing of abrupt climate transitions, a robust system for ultrahigh-resolution sampling of glacier ice is needed. Here, we present a multielement method of LA-ICP-MS analysis wherein an array of chemical elements is simultaneously measured from the same ablation area. Although multielement techniques are commonplace for high-concentration materials, prior to the development of this method, all LA-ICP-MS analyses of glacier ice involved a single element per ablation pass or spot. This new method, developed using the LA-ICP-MS system at the W. M. Keck Laser Ice Facility at the University of Maine Climate Change Institute, has already been used to shed light on our flawed understanding of natural levels of Pb in Earth’s atmosphere.

中文翻译：

从冰川冰芯获取LA-ICP-MS数据的一种新的多元素方法

为了回答有关突变气候的速率和时间的紧迫的新研究问题，需要一个功能强大的冰川冰超高分辨率采样系统。在这里，我们提出了一种LA-ICP-MS分析的多元素方法，其中从同一烧蚀区域同时测量一系列化学元素。尽管多元素技术对于高浓度材料来说是司空见惯的，但是在此方法开发之前，所有LA-ICP-MS对冰川冰的分析都涉及到每个烧蚀通道或烧蚀点只有一个元素。这种新方法是由缅因州大学气候变化研究所WM Keck激光冰场的LA-ICP-MS系统开发的，已经被用于阐明我们对地球大气中自然铅水平的理解有误。

更新日期：2017-11-09

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