A new method for relative Sr determination in human teeth enamel.
J Anthropol Sci
; 89: 153-60, 2011.
Article
en En
| MEDLINE
| ID: mdl-21757792
ABSTRACT
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.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Análisis Espectral
/
Estroncio
/
Esmalte Dental
Tipo de estudio:
Diagnostic_studies
Límite:
Humans
Idioma:
En
Revista:
J Anthropol Sci
Asunto de la revista:
ANTROPOLOGIA
Año:
2011
Tipo del documento:
Article
País de afiliación:
Argentina