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2011 (Vol. 3, Issue: 03)
Article Information:

Speciation of Nickel in Soils and Cereal

J.T. Ayodele and S.S. Mohammed
Corresponding Author:  S.S. Mohammed 

Key words:  Cereal, flame atomic absorption spectrometry, Nickel, soil, speciation, ,
Vol. 3 , (03): 202-209
Submitted Accepted Published
2011 January, 16 2011 February, 15 2011 March, 30
Abstract:

The levels of trace elements in food and agricultural samples have been shown to influence human and plant metabolism. The study of heavy metal speciation is of interest for the evaluation of their mobility, bioavailability and ecotoxicity. In this study, the Nickel concentrations of the cereal and soil samples were determined using Flame Atomic Absorption Spectrometry (FAAS). The soil samples related to the cereal were digested and extracted using different digestion and extraction reagents. The results indicate that the soil samples collected from various locations, contain varying amounts of the metals, and it was distributed between Residual, Oxide and Carbonate fractions. The results of the study also showed that the lowest value of total Ni concentration in soil was in sampling point KC4 (2.93 mg/kg) and the highest value was in points ST6 and ST7 (105.37 mg/kg). In some of the sample locations, the Ni concentration was above the tolerable limit value of 50 mg/kg. The relationship between the cereal Ni and soil-extractable Ni concentrations was significant (p<0.05).
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  Cite this Reference:
J.T. Ayodele and S.S. Mohammed, 2011. Speciation of Nickel in Soils and Cereal.  Research Journal of Applied Sciences, Engineering and Technology, 3(03): 202-209.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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