AMS-C-14 analysis of modern teeth: A comparison between two sample preparation techniques
Por:
Solis C., Solis-Meza E., Morales M.E., Rodriguez-Ceja M., Martínez-Carrillo M.A., Garcia-Calderon D., Huerta A., Chávez E.
Publicada:
1 sep 2017
Resumen:
AMS-C-14 analysis of modern teeth has become important for forensic
studies. C-14 content in human teeth reflects the C-14 atmospheric
concentration during its formation and allows the calculation of the
actual year of birth. Through AMS, it is possible to measure the C-14
concentrations in a tissue with high precision. However, there is a
debate about which should be the best fraction for teeth carbon dating:
collagen or enamel. This work focuses on the results obtained from
enamel and collagen extracted from Mexican people in order to compare
them. Collagen from dental pieces donated from people older than
60-years old have been included to understand the turnover process and
usefulness of collagen to determine the date of birth. Our results
indicate that when a single dental piece is available, enamel method
allows the determination of the tooth formation date. Dating collagen of
the same tooth helps to discriminate if the formation date belongs to
the left or the right side of the peak bomb, but also corroborates, the
ages obtained through enamel analysis. (C) 2017 Elsevier B.V. All rights
reserved.
Filiaciones:
Solis C.:
Univ Nacl Autonoma Mexico, Inst Fis, Ave Univ 3000,Circuito Invest Cient S-N, Mexico City 04510, DF, Mexico
Instituto de Física Universidad Nacional Autónoma de México, Avenida Universidad 3000, Circuito de la Investigación Científica S/N Ciudad Universitaria04510, Mexico
Solis-Meza E.:
Univ Nacl Autonoma Mexico, Inst Fis, Ave Univ 3000,Circuito Invest Cient S-N, Mexico City 04510, DF, Mexico
Instituto de Física Universidad Nacional Autónoma de México, Avenida Universidad 3000, Circuito de la Investigación Científica S/N Ciudad Universitaria04510, Mexico
Morales M.E.:
Univ Nacl Autonoma Mexico, Inst Fis, Ave Univ 3000,Circuito Invest Cient S-N, Mexico City 04510, DF, Mexico
Instituto de Física Universidad Nacional Autónoma de México, Avenida Universidad 3000, Circuito de la Investigación Científica S/N Ciudad Universitaria04510, Mexico
Rodriguez-Ceja M.:
Univ Nacl Autonoma Mexico, Inst Fis, Ave Univ 3000,Circuito Invest Cient S-N, Mexico City 04510, DF, Mexico
Instituto de Física Universidad Nacional Autónoma de México, Avenida Universidad 3000, Circuito de la Investigación Científica S/N Ciudad Universitaria04510, Mexico
Martínez-Carrillo M.A.:
Univ Nacl Autonoma Mexico, Fac Ciencias, Ave Univ 3000,Circuito Invest Cient S-N, Mexico City 04510, DF, Mexico
Facultad de Ciencias Universidad Nacional Autónoma de México, Avenida Universidad 3000, Circuito de la Investigación Científica S/N Ciudad Universitaria04510, Mexico
Garcia-Calderon D.:
Univ Nacl Autonoma Mexico, Inst Fis, Ave Univ 3000,Circuito Invest Cient S-N, Mexico City 04510, DF, Mexico
Instituto de Física Universidad Nacional Autónoma de México, Avenida Universidad 3000, Circuito de la Investigación Científica S/N Ciudad Universitaria04510, Mexico
Huerta A.:
Univ Nacl Autonoma Mexico, Inst Fis, Ave Univ 3000,Circuito Invest Cient S-N, Mexico City 04510, DF, Mexico
Instituto de Física Universidad Nacional Autónoma de México, Avenida Universidad 3000, Circuito de la Investigación Científica S/N Ciudad Universitaria04510, Mexico
Chávez E.:
Univ Nacl Autonoma Mexico, Inst Fis, Ave Univ 3000,Circuito Invest Cient S-N, Mexico City 04510, DF, Mexico
Instituto de Física Universidad Nacional Autónoma de México, Avenida Universidad 3000, Circuito de la Investigación Científica S/N Ciudad Universitaria04510, Mexico
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