Determination of alpha activity in solid samples by leaching or digestion

作者：de la Torre Perez J; Jurado Vargas M; Martin Sanchez A; Rubio Montero M P; Ruano Sanchez A B

来源：Applied Radiation and Isotopes, 2013, 81: 49-52.

DOI：10.1016/j.apradiso.2013.03.040

• Alpha-particle spectrometry
• Acid leaching
• Microwave acid digestion

The analysis of solid environmental samples by alpha-particle spectrometry generally involves processes requiring an initial treatment to destroy the complexes in the matrix, and dissolve the radionuclides of interest. This study compared the activities obtained for several natural radionuclides (U-238, U-234, Th-230, Ra-226, and Po-210) in previously well-characterized materials, using two procedures: acid leaching and digestion in a microwave oven. The measured activities were in general very similar for the two procedures, with a strong statistical correlation between the two sets of values.

• 出版日期2013-11