Applying a Method of Chemical Separation and Mass Spectrometry for the Determination of Radium-226 in Surface Water

Authors

  • Rita Y. Sibello-Hernández Centro de Estudios Ambientales de Cienfuegos, Cienfuegos
  • Maria Letizia Cozzella Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti, Roma
  • Aniel Guillén-Arruebarrena Centro de Estudios Ambientales de Cienfuegos, Cienfuegos

Abstract

Radium-226 (226Ra) is a naturally occurring radionuclide, alpha emitter with half-life of 1 622 years originating from uranium-238 (238U). Its presence in drinking water is a major radiological hazards, which requires constant monitoring. The analytical techniques used in the determination of 226Ra generally require the stablishment of secular equilibrium and/or tedious separation of other elements. The main objetive of this paper is to demonstrate the efficiency and speed of a method of preconcentration and separation of 226Ra in natural water samples using coprecipitation with MnO2 radius and purification by cation exchange resin Dowex 50WX8. Measurement technique was Quadrupole Mass Spectrometry and associated induced plasma ICP-Q-MS. The 226Ra values obtained are in the range of 0,010-0,219 pg/L in natural waters analyzed.

Keywords: radium, extraction chromatography, mass spectrometry

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Published

2015-10-31

How to Cite

Sibello-Hernández, R. Y., Cozzella, M. L., & Guillén-Arruebarrena, A. (2015). Applying a Method of Chemical Separation and Mass Spectrometry for the Determination of Radium-226 in Surface Water. Revista Cubana De Química, 26(3), 159–165. Retrieved from https://cubanaquimica.uo.edu.cu/index.php/cq/article/view/5

Issue

Vol. 26 No. 3 (2014)

Section

Artículos

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