Characterization of a stream sediment matrix material for sampling behavior in order to use it as a CRM

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• 作者：Huang Donghui ; Xiao Caijin ; Ni Bangfa ; Tian Weizhi ; ZhangYuanxun ; Wang Pingsheng ; Liu CunXiong ; Zhang Guiying
• 关键词：Micro-analytical techniques ; INAA ; PIXE ; SR-XRF ; CRMs ; Sampling behavior
• 刊名：Applied Radiation and Isotopes
• 出版年：2010
• 出版时间：January 2010
• 年：2010
• 卷：68
• 期：1
• 页码：37-41
• 全文大小：221 K

文摘

Sampling behavior of multielements in a stream sediment matrix was studied with sample sizes in a range of 9 orders of magnitude by a combination of INAA, PIXE and SR-XRF. For accurately weighable sample sizes (>1 mg), sampling uncertainties for 16 elements are better than 1 % by INAA. For sample sizes that cannot be accurately weighed (<1 mg), PIXE and SR-XRF were used and the effective sample sizes were estimated. Sampling uncertainties for seven elements are better than 1 % at sample sizes of tenth mg level, and that for three elements are better than 10 % on ng levels.