Innovative synthesis of REE bearing geochemical solid reference material for the exploration and evaluation of REE deposit

2016 Fiscal Year Final Research Report

• Project/Area Number: 26820395
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Earth system and resources engineering
• Research Institution: Kyushu University
• Principal Investigator: Yonezu Kotaro 九州大学, 工学研究院, 准教授 (90552208)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 希土類元素 / 地球化学標準試料 / ゾル-ゲル法 / LA-ICP-MS

Outline of Final Research Achievements

In order to synthesize the homogeneous REE bearing geochemical solid reference material, newly developed sol-gel method was applied. During sol-gel method, adequate amount of aluminum was added into REE bearing solution to form double propoxide as a precursor. It prevents from the aggregation of REE. According to spectroscopic analysis such as FT-IR and XAFS and 3D mapping by LA-ICP-MS, REE in the synthesized material is well dispersed regardless of the number of REE. The synthesized reference materials are highly expected to use for precise quantitative analysis by LA-ICP-MS for the exploration and evaluation of REE deposit.

Free Research Field

地球化学、資源工学