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A New Multielement Method for LA-ICP-MS Data Acquisition from Glacier Ice Cores

机译:从冰川冰芯获取LA-ICP-MS数据的一种新的多元素方法

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摘要

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.
机译:为了回答关于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,但在此方法开发之前,所有LA-ICP-MS对冰川冰的分析在每个烧蚀道次或点处都涉及一个元素。使用LA-ICP-MS开发的这一新方法缅因州大学气候变化研究所的WM凯克激光制冰厂的这一系统已经被用于阐明我们对地球大气中自然铅水平的错误理解。

著录项

  • 来源
    《Environmental Science & Technology》 |2017年第22期|13282-13287|共6页
  • 作者单位

    Climate Change Institute, Sawyer Environmental Research Building, University of Maine, Orono, Maine 04469, United States;

    Climate Change Institute, Sawyer Environmental Research Building, University of Maine, Orono, Maine 04469, United States;

    Climate Change Institute, Sawyer Environmental Research Building, University of Maine, Orono, Maine 04469, United States;

    Climate Change Institute, Sawyer Environmental Research Building, University of Maine, Orono, Maine 04469, United States;

    Climate Change Institute, Sawyer Environmental Research Building, University of Maine, Orono, Maine 04469, United States;

    Department of Geography & Earth Sciences, Aberystwyth University, SY23 3DB Wales, United Kingdom;

    Oeschger Center for Climate Change Research, Institute for Climate and Environmental Physics, University of Bern, 3012 Bern, Switzerland;

    Climate Change Institute, Sawyer Environmental Research Building, University of Maine, Orono, Maine 04469, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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  • 入库时间 2022-08-17 13:58:01

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