Journal of
Environmental Chemistry and Ecotoxicology

  • Abbreviation: J. Environ. Chem. Ecotoxicol.
  • Language: English
  • ISSN: 2141-226X
  • DOI: 10.5897/JECE
  • Start Year: 2009
  • Published Articles: 197

Full Length Research Paper

Evaluation on rare earth elements of Brazilian agricultural supplies

C. Turra*, E. A. N. Fernandes and M. A. Bacchi
Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Piracicaba, SP, Brazi
Email: [email protected]

  •  Accepted: 01 March 2011
  •  Published: 30 April 2011

Abstract

 

This work focuses on the determination of rare earth elements (REE) in Brazilian agricultural supplies by instrumental neutron activation analysis (INAA). The results obtained have shown that La, Ce, Nd, Sm, Eu, Tb, Yb, Lu and Sc are present within a large range of mass fractions in the agricultural supplies analysed. The thermophosphate and single superphosphate showed the highest mass fractions of REE. Considering the recommended dose and long-term use, NPK fertilizers, single superphosphate and thermophosphate can significantly increase the content of REE in soil and may cause harmful effects to environment and humans.

 

Key words: Agricultural supplies, rare earth elements, lanthanoids, phosphate fertilizer, INAA.

Copyright © 2024 Author(s) retain the copyright of this article.

This article is published under the terms of the Creative Commons Attribution License 4.0

Back to Vol. 3 No. 4
Back to articles
  • Articles on Google by:
SUBSCRIBE TO RSS
SUBMIT MANUSCRIPT
CONFERENCES