Application of bio-accumulation for specific elemets

2015 Fiscal Year Final Research Report

• Project/Area Number: 25620141
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Green/Environmental chemistry
• Research Institution: Chiba University
• Principal Investigator: Numako Chiya 千葉大学, 理学(系)研究科(研究院), 准教授 (80284280)
• Research Collaborator: YOKOYAMA Takushi 九州大学, 大学院理学府, 教授 ; TANAKA Tetsuhiro 九州大学, 大学院理学府, 大学院生
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: ヒザラガイ / 希土類元素 / 生体濃縮

Outline of Final Research Achievements

Accumulation of REEs into radular teeth of chiton was investigated with material scientific technique. Two dimensional distributions of elements in a tooth of chiton, especially Sr, a key element of environmental monitoring, were indicated with micro PIXE and laser ablation MS. Quantitative analyses with atomic absorption spectroscopy and ICP-MS were examined to the teeth of chiton and elucidated that the teeth of chiton accumulated REEs at high concentration in hundred thousand times of those of seawater.

Free Research Field

分析化学　環境化学