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Analysis of some heavy metals in Guiera senegalensis plants from the vicinity of a Kaolin milling plant in Alkaleri Bauchi State, Nigeria using Neutron Activation Analysis (NAA)

Author Affiliations

  • 1Department of Chemistry, Gombe State University, Gombe, Nigeria
  • 2Department of Chemistry, Modibbo Adama University of Technology Yola, Adamawa State, Nigeria
  • 3Department of Chemistry, Modibbo Adama University of Technology Yola, Adamawa State, Nigeria
  • 4Department of Chemistry, Gombe State University, Gombe, Nigeria

Res.J.chem.sci., Volume 8, Issue (1), Pages 1-10, January,18 (2018)


This study was conducted to determine the concentration of heavy metals in samples of Guierasenegalensis from the vicinity of a Kaolin milling plant in Alkaleri Bauchi State. A total of twelve samples were collected at different sampling points within the vicinity of the Kaolin milling plant. 11 elements were analyzed using Neutron Activation Analysis (NAA). The concentrations of elements arein the range of 0.15 ± 0.03-2.60 ± 0.04mg/Kg for Co, 53.0 ± 18.55 - 343.5 ± 7.56mg/Kg for Fe 334.8 ± 1.67 - 1708 ± 102.5mg/Kg for Mn 11.01 ± 2.3 - 43.15 ± 2.9mg/Kg for Zn 2.49 ± 0.09 - 9.04±3.16mg/Kg for Cu 0.14 ± 0.01 - 2.46±0.05mg/Kg for As 0.49 ± 0.17 - 6.69 ± 1.31mg/Kg for V 0.011±0.00 - 0.031±0.00 for Cr 0.003 ± 0.001 - 0.37±0.015 mg/Kg for Sb 0.0065 ± 0.002 - 0.017 ± 0.004mg/Kg for Cd and 13.6 ± 4.76 - 103±26mg/Kg for Ba. The levels of the elements determined are in the order Mn>Fe>Ba>Zn>Cu>V>Co>As>Sb>Cr>Cd. Most of the elements are present in most samples but some were however below the detection limit of the instrument in very few samples. The mean concentration of the elements at different direction showed no significant difference except for Cr (P<0.05).


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