WJNST  Vol.3 No.1 , January 2013
Radioisotopes and Analytical Chemistry
ABSTRACT

When Periodic Chart of elements is consulted to find natural radioisotopes, one firstly finds tritium, followed by 10Be, 14C, 50V and many others. Before Bi, 12 cosmogenic radioisotopes are listed. They are those continuously produced by nuclear reactions among light elements present in earthly atmosphere and radiations coming from the outside space. Eighteen additional primordial radioisotopes are listed. They were created at the same time that the non-radioactive isotopes composing the 92 natural elements in the periodic table. From Bi on, every isotope is radioactive, up to U. Then follow the artificial elements produced by laboratory nuclear reactions from Np to element with atomic number 118. In this way, from 118 known elements, 64 are radioactive, which amount 55% of all those units forming the chemical compounds. Therefore, the complete understanding of radioactivity should be a suitable tool to advance our knowledge of Universe, and consequent applications to get better living conditions. So, this paper deals with radioisotopes as suitable instruments for chemical analysis.


Cite this paper
M. Navarrete, T. Martínez, A. Fernández, M. Zúñiga, M. Camacho and M. Flores, "Radioisotopes and Analytical Chemistry," World Journal of Nuclear Science and Technology, Vol. 3 No. 1, 2013, pp. 6-13. doi: 10.4236/wjnst.2013.31002.
References
[1]   J. M. Navarrete, J. Campos, T. Martínez and L. Cabrera, “Determination of K Traces in Foodstuffs by Natural 40K Radiation,” Journal of Radioanalytical and Nuclear Chemistry, Vol. 265, No. 1, 2005, pp. 133-135. doi:10.1007/s10967-005-0797-3

[2]   B. Hoeling, D. Reed and P. B. Spiegel, “Going Bananas in the Radiation Laboratory,” American Journal of Physics, Vol. 67 No. 5, 1999, pp. 440-442. doi:10.1119/1.19281

[3]   P. Lizárraga, “Determinación de la Concentración de K en Alimentos Mediante la Detección de las Radiaciones Emitidas por el 40K,” Tesis Profesional, Facultad de Química, UNAM, 2006.

[4]   J. M. Navarrete, T. Martínez, L. Cabrera, P. Lizárraga, M. A. Zúniga and M. Camacho, “Potassium Concentration in Four Basic Diet Products (Milk, Eggs, Wheat and Corn),” Journal of Life Sciences, Vol. 5, No. 8, 2011, pp. 614617.

[5]   A. Fernández, T. Martínez, M. Navarrete and M. A. Zúniga, “Validation of the Quantification Method for Potassium by Means of 40K γ Radiation,” INCS News, Vol. 9, No. 3, 2012, pp. 4-8.

[6]   N. Lavi, F. Groppi and Z. B. Alfassi, “On the Measurement of 40K in Natural and Synthetic Materials by the Method of High Resolution γ Ray Spectrometry,” Radiation Measurements, Vol. 38, No. 2, 2004, pp. 139-143. doi:10.1016/j.radmeas.2003.11.005

[7]   T. Martínez, M. Navarrete, L. Cabrera, F. Juárez, F. Ramos and K. Vázquez, “40K Activities and K Concentrations in Tobacco Samples of Mexican Cigarettes,” Journal of Radioanalytical and Nuclear Chemistry, Vol. 273, No. 3, 2007, pp. 569-572. doi:10.1007/s10967-007-0911-9

[8]   N. Lavi and Z. Alfassi, “Development and Application of Marinelli Beaker Standards for Monitoring Radioactivity in Dairy-Products by γ-Ray Spectrometry,” Radiation Protection Dosimetry, Vol. 61, No. 6, 2004, pp. 14371441.

[9]   N. Lavi and Z. Alfassi, “Development of Marinelli Beaker Standards Containing Thorium Oxide and Application for Measurements of Radioactive Environmental Samples,” Radiation Measurements, Vol. 39, No. 1, 2005, pp. 15-19. doi:10.1016/j.radmeas.2004.04.009

[10]   A. García, E. Soberón, N. Cortés, R. Rodríguez, J. Herrera and A. Alcántara, “Métodos Analíticos, Guía de Validación,” Colegio Nacional de Químico Farmacéuticos Biólogos de México, México, 2002.

[11]   NMX-Z-109-1992, “Términos Generales y sus Definiciones Referentes a la Normalización y Actividades Conexas,” Diario Oficial de la Federación, México, 1992.

[12]   “Métodos Analíticos Adecuados a su Propósito, Guía de Laboratorio Para Validación de Métodos y Tópicos Relacionados,” EURACHEM, Traducción Libre del CENAM, 1998.

[13]   L. A. Currie, “Limits for Qualitative Detection and Quantitative Determination. Application to Radiochemistry,” Analytical Chemistry, Vol. 40, No. 3, 1968, pp. 586-593. doi:10.1021/ac60259a007

[14]   J. M. Navarrete, L. C. Longoria, M. T. Martinez and L. Cabrera, “Determination of Co, Se and I by NAA in Foodstuff by Pre-Concentration of Traces,” Journal of Radioanalytical and Nuclear Chemistry, Vol. 271, No. 3, 2007, pp. 599-601. doi:10.1007/s10967-007-0313-z

 
 
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