A new method for relative Sr determination in human teeth enamel.

We present a new method to determine Sr/Ca changes in hard dental tissues based on laser ablation and spectroscopic detection. By using femtosecond Laser Induced Breakdown Spectroscopy (fs-LIBS), we micro mapped the relative amount of strontium in the enamel of three human lower third molar. We also...

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Detalles Bibliográficos
Autores principales:	Alvira, Fernando Carlos, Ramirez Rozzi, Fernando V., Torchia, Gustavo Adrián, Roso, Luis, Bilmes, Gabriel Mario
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2011
Materias:	Física Laser ablation Strontium Calcium Incremental lines Enamel
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/178351
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-178351
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spelling	I19-R120-10915-1783512025-04-22T20:28:26Z http://sedici.unlp.edu.ar/handle/10915/178351 A new method for relative Sr determination in human teeth enamel. Alvira, Fernando Carlos Ramirez Rozzi, Fernando V. Torchia, Gustavo Adrián Roso, Luis Bilmes, Gabriel Mario 2011-01-01 2025-04-22T19:00:20Z en Física Laser ablation Strontium Calcium Incremental lines Enamel We present a new method to determine Sr/Ca changes in hard dental tissues based on laser ablation and spectroscopic detection. By using femtosecond Laser Induced Breakdown Spectroscopy (fs-LIBS), we micro mapped the relative amount of strontium in the enamel of three human lower third molar. We also analyzed the Sr/Ca ratio along the striae of Retzius. Results show that microlibs allows detection of variation in relative Sr/Ca ratio through enamel. The same values of Sr/Ca ratio were found along a single stria. The method has a precision better than 95% and is sensitive enough to detect Sr/Ca ratio variations among striae and within stria. Fs-LIBS generates information in a fast and simple way that can be used by non-specialists to make inferences about diet or mobility in human populations and fossil hominids. Laboratorio de Ablación Láser, Fotónica e Imágenes 3D Articulo Articulo http://creativecommons.org/licenses/by-nc/4.0/ Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) application/pdf 153-160
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Física Laser ablation Strontium Calcium Incremental lines Enamel
spellingShingle	Física Laser ablation Strontium Calcium Incremental lines Enamel Alvira, Fernando Carlos Ramirez Rozzi, Fernando V. Torchia, Gustavo Adrián Roso, Luis Bilmes, Gabriel Mario A new method for relative Sr determination in human teeth enamel.
topic_facet	Física Laser ablation Strontium Calcium Incremental lines Enamel
description	We present a new method to determine Sr/Ca changes in hard dental tissues based on laser ablation and spectroscopic detection. By using femtosecond Laser Induced Breakdown Spectroscopy (fs-LIBS), we micro mapped the relative amount of strontium in the enamel of three human lower third molar. We also analyzed the Sr/Ca ratio along the striae of Retzius. Results show that microlibs allows detection of variation in relative Sr/Ca ratio through enamel. The same values of Sr/Ca ratio were found along a single stria. The method has a precision better than 95% and is sensitive enough to detect Sr/Ca ratio variations among striae and within stria. Fs-LIBS generates information in a fast and simple way that can be used by non-specialists to make inferences about diet or mobility in human populations and fossil hominids.
format	Articulo Articulo
author	Alvira, Fernando Carlos Ramirez Rozzi, Fernando V. Torchia, Gustavo Adrián Roso, Luis Bilmes, Gabriel Mario
author_facet	Alvira, Fernando Carlos Ramirez Rozzi, Fernando V. Torchia, Gustavo Adrián Roso, Luis Bilmes, Gabriel Mario
author_sort	Alvira, Fernando Carlos
title	A new method for relative Sr determination in human teeth enamel.
title_short	A new method for relative Sr determination in human teeth enamel.
title_full	A new method for relative Sr determination in human teeth enamel.
title_fullStr	A new method for relative Sr determination in human teeth enamel.
title_full_unstemmed	A new method for relative Sr determination in human teeth enamel.
title_sort	new method for relative sr determination in human teeth enamel.
publishDate	2011
url	http://sedici.unlp.edu.ar/handle/10915/178351
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A new method for relative Sr determination in human teeth enamel.

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