2010 Fiscal Year Final Research Report

The Development of Source Identification of Metal Exposure by Lead Isotopic Measurement and Multielement Mapping in the Human Nails and Hair

Research Project

Project/Area Number	20510029
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Environmental impact assessment/Environmental policy
Research Institution	Japan Women's University
Principal Investigator	IMAIZUMI Yukiko Japan Women's University, 理学部, 助手 (10247091)
Co-Investigator(Kenkyū-buntansha)	ARIKAWA Yoshiko 日本女子大学, 理学部, 教授 (00060666)
Project Period (FY)	2008 – 2010
Keywords	鉛同位体比 / 多元素マッピング / LA / ICP-MS / 爪 / 毛髪
Research Abstract	The measurements of the lead isotopic ratio and the multielement mapping of human nails and hair by LA/ICP-MS were investigated. The possibility that the time fluctuation of lead isotopic ratio is followed by the measurement of the nondestructive hair along the growth direction was able to suggested. The lead isotopic ratio of nail was inferior to hair in precision. It seems to be useful when the human hair and nail are used complementary. Mapping measurement of Mg, Al, S, Cr, Co, Cu, Zn, Se, and Pb were possible in the hair sample. The determination of contents of these elements in the human hair was unsuccessful using the skim milk powder sample as a standard reference material.

(4 results)