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Pretreatment of Iron Artifacts at SNU-AMS

Published online by Cambridge University Press:  18 July 2016

M K Cheoun ,
J C Kim ,
J Kang ,
I C Kim ,
J H Park  and
Y M Song
M K Cheoun
Affiliation:
Inter-University Center for Natural Science Research Facility, Seoul National University, Seoul 151-742, Korea Email: [email protected]
J C Kim
Affiliation:
Department of Physics, Seoul National University, Seoul 151-742, Korea
J Kang
Affiliation:
Inter-University Center for Natural Science Research Facility, Seoul National University, Seoul 151-742, Korea
I C Kim
Affiliation:
Department of Physics, Seoul National University, Seoul 151-742, Korea
J H Park
Affiliation:
Department of Physics, Seoul National University, Seoul 151-742, Korea
Y M Song
Affiliation:
Inter-University Center for Natural Science Research Facility, Seoul National University, Seoul 151-742, Korea
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Abstract

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We present the current status of accelerator mass spectrometry (AMS) dating of iron artifacts at Seoul National University (SNU). In ancient iron production, charcoal was widely used as carbon for the smelting process, whereas coal is used in modern times. If reliable data could be obtained from carbon by using AMS, ancient iron artifacts could be traced to their production age. In normal acid treatment, it is not easy to extract carbon due to its colloidal property. The negative charge property of the carbon colloid, however, makes it possible for it to be precipitated with positive ions by dissolving the iron chemically. An extraction yield of the carbon incorporated in modern cast iron of about 70% is attained. More refined methods to increase the extraction rate are under progress for archaeological applications.

Type
I. Becoming Better
Information
Radiocarbon , Volume 43 , Issue 2A: Proceedings of the 17th International Radiocarbon Conference (Part 1 of 3) , 2001 , pp. 217 - 219
Copyright
Copyright © The Arizona Board of Regents on behalf of the University of Arizona 

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