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Py-GC/MS and radiocarbon dating of archaeological woods treated with lactitol

Research Project

Project/Area Number 18K01093
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 03060:Cultural assets study-related
Research InstitutionAichi University

Principal Investigator

Nishimoto Hiroshi  愛知大学, 経済学部, 准教授 (40609757)

Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2019: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2018: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords放射性炭素年代測定 / 保存科学 / 熱分解GC-MS / 糖アルコール / 熱分解GC/MS / 考古学
Outline of Final Research Achievements

Agents used to preserve excavated wood from archaeological sites contain carbon, which is suggested to have a negative effect on radiocarbon dating of excavated wood from archaeological sites. In this study, we examined how sugar alcohols, a type of preservation agent, affect radiocarbon dating and how they can be excluded.
The results showed that most sugar alcohols tend to shift the radiocarbon dates of the woods toward the newer radiocarbon dates. It was also found that the effects of the sugar alcohols could not be completely removed by cleaning treatment. In the future, it will be necessary to investigate methods that can produce accurate dates even when sugar alcohols remain.

Academic Significance and Societal Importance of the Research Achievements

これまで、保存処理された木材は放射性炭素年代測定における測定対象とみられてこなかった。保存に使われる薬剤が、年代値にどのような影響がどの程度あるのか、その影響を除去することができるのかといった研究されてこなかったためである。本研究によって、その影響の程度や除去の可能性を示すことができた。すなわち、本研究は放射性炭素年代における測定対象の拡大に資するものである。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (1 results)

All 2022

All Presentation (1 results)

  • [Presentation] 加速器質量分析による放射性炭素年代測定と Py-GC/MS の応用2022

    • Author(s)
      西本寛
    • Organizer
      第7回日本医用マススペクトル学会西部会
    • Related Report
      2022 Research-status Report

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Published: 2018-04-23   Modified: 2025-01-30  

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