dor_id: 41783

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650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

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856.4.0.u: http://revistas.unam.mx/index.php/rmf/article/view/31856/29423

100.1.#.a: Montero Cabrera, María Elena; Méndez García, C.; Rentería Villalobos, M.; García Tenorio, R.

524.#.#.a: Montero Cabrera, María Elena, et al. (2012). Application of the alpha spectrometry for the study of core sediment extracted in the San Marcos dam in Chihuahua. Revista Mexicana de Física; Vol 58, No 003. Recuperado de https://repositorio.unam.mx/contenidos/41783

245.1.0.a: Application of the alpha spectrometry for the study of core sediment extracted in the San Marcos dam in Chihuahua

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Facultad de Ciencias, UNAM

264.#.0.c: 2012

264.#.1.c: 2012-06-01

653.#.#.a: alpha spectrometry; uranium; polonium; sediment core

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-ND 4.0 Internacional, https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es, fecha de asignación de la licencia 2012-06-01, para un uso diferente consultar al responsable jurídico del repositorio por medio de rmf@ciencias.unam.mx

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041.#.7.h: eng

520.3.#.a: The determination of the specific activities of 210 Po and isotopic uranium by alpha spectrometry was performed in a sediment core from San Marcos Dam. The objective of this work was to analyze the vertical distribution of isotopic uranium and 210Po and the behavior of these radionuclides along sediment core collected from the San Marcos Dam. Sample was divided into 11 sections, in which 210Po and Isotopic Uranium were determined using liquid-liquid extraction with tributyl phosphate (TBP). Furthermore, it was made a comparison between the TBP technique and the technique of extraction chromatography using UTEVA resins for uranium. The results of specific activities for 210Po show a trend to decrease along the core, whereas the uranium isotopic does not show a pointed trend. The results of isotopic ratios between the 234U and 238U show that they are close to secular equilibrium in each of the core sections. The comparison between the two uranium extraction techniques indicates that chemical yield is better using the UTEVA technique than TBP extraction.

773.1.#.t: Revista Mexicana de Física; Vol 58, No 003 (2012)

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Artículo

Application of the alpha spectrometry for the study of core sediment extracted in the San Marcos dam in Chihuahua

Montero Cabrera, María Elena; Méndez García, C.; Rentería Villalobos, M.; García Tenorio, R.

Facultad de Ciencias, UNAM, publicado en Revista Mexicana de Física, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Facultad de Ciencias, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Montero Cabrera, María Elena, et al. (2012). Application of the alpha spectrometry for the study of core sediment extracted in the San Marcos dam in Chihuahua. Revista Mexicana de Física; Vol 58, No 003. Recuperado de https://repositorio.unam.mx/contenidos/41783

Descripción del recurso

Autor(es)
Montero Cabrera, María Elena; Méndez García, C.; Rentería Villalobos, M.; García Tenorio, R.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Application of the alpha spectrometry for the study of core sediment extracted in the San Marcos dam in Chihuahua
Fecha
2012-06-01
Resumen
The determination of the specific activities of 210 Po and isotopic uranium by alpha spectrometry was performed in a sediment core from San Marcos Dam. The objective of this work was to analyze the vertical distribution of isotopic uranium and 210Po and the behavior of these radionuclides along sediment core collected from the San Marcos Dam. Sample was divided into 11 sections, in which 210Po and Isotopic Uranium were determined using liquid-liquid extraction with tributyl phosphate (TBP). Furthermore, it was made a comparison between the TBP technique and the technique of extraction chromatography using UTEVA resins for uranium. The results of specific activities for 210Po show a trend to decrease along the core, whereas the uranium isotopic does not show a pointed trend. The results of isotopic ratios between the 234U and 238U show that they are close to secular equilibrium in each of the core sections. The comparison between the two uranium extraction techniques indicates that chemical yield is better using the UTEVA technique than TBP extraction.
Tema
alpha spectrometry; uranium; polonium; sediment core
Idioma
eng
ISSN
2683-2224 (digital); 0035-001X (impresa)

Enlaces