Determination of Rare Earth Elements in the Marine Sediments by Inductively Coupled Plasma-Mass Spectrometry with High-Pressure Closed Digestion

详细信息   

• 责任者：Gao Jingjing (First Institute of Oceanography ; State Oceanic Administration ; Qingdao 266061 ; China) ; Liu Jihua
• 刊名：Rock and Mineral Analysis
• 出版年：2012
• 卷期：31(3)
• 关键词：ICP—MS ; inductively coupled plasma mass spectroscopy ; 海洋沉积物 ; marine sediments ; 稀土元素 ; rare earths
• 页码：p.425-429
• 图表：10 tables, 22 refs.
• 分类号：0900
• issnNo：ISSN0254-5357
• isbnNo：CN11-2131/TD

摘要

Using a HF-HNO₃ system with high-pressure closed digestion, a method to determine concentrations of fifteen rare earth elements （REEs） in marine sediments was studied by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). The results were consistent with certified values, and the relative standard deviation （RSD） and relative error were both less than 5%. The determination precision （RSD, n = 6） of the Yangtze River estuary sediment samples was less than 5% , and the recoveries were 95.8% ～104%. This method has a low detection limit with high precision and accuracy, all of which meet the requirements to analyze a large number of marine sediment samples.