Total concentration of uranium and thorium in some Brazilian soils

Authors

  • Daniel Vidal Pérez
  • Marcelo Francisco da Costa Saldanha
  • Josino Costa Moreira
  • Delmo Santiago Vaitsman

DOI:

https://doi.org/10.1590/S1678-3921.pab1998.v33.4948

Abstract

Samples from superficial (A) and subsuperficial (B) diagnostic horizons of 15 Brazilian soils were analysed to determine the content of U and Th (on a dry weight basis) by ICP-MS following digestion with Aqua regia. A range of 0.003 to 38.080 mg/kg for Th and 0.001 to 2.115 mg/kg for U, and 0.003 to 2.298 mg/kg for U and 0.071 to 42.090 mg/kg for Th were obtained for the A and B horizons, respectively. Positive and significant correlation coefficients were found between the two elements and iron and clay contents for the 30 soil samples analysed.

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Published

1998-08-01

How to Cite

Vidal Pérez, D., da Costa Saldanha, M. F., Costa Moreira, J., & Vaitsman, D. S. (1998). Total concentration of uranium and thorium in some Brazilian soils. Pesquisa Agropecuaria Brasileira, 33(8), 1417–1423. https://doi.org/10.1590/S1678-3921.pab1998.v33.4948

Issue

v.33, n.8, ago. 1998

Section

SCIENTIFIC NOTES