期刊
ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷 36, 期 1, 页码 7-11出版社
AMER CHEMICAL SOC
DOI: 10.1021/es011088z
关键词
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Impurities trapped in ice sheets and glaciers have the potential to provide detailed, high temporal resolution proxy information on paleo-environments, atmospheric circulation, and environmental pollution through the use of chemical, isotopic, and elemental tracers. We present a novel approach to ice-core chemical analyses in which an ice-core melter is coupled directly with both an inductively Coupled plasma mass spectrometer and a traditional continuous flow analysis system, We demonstrate this new approach using replicated measurements of ice-core samples from Summit, Greenland. With this method, it is possible to readily obtain continuous, exactly coregistered concentration records for a large number of elements and chemical species at ppb and ppt levels and at unprecedented depth resolution. Such very-high depth resolution, multiparameter measurements will significantly expand the use of ice-core records for environmental proxies.
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