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Trace Metals Levels in Inorganic Fertilizers Commercially Available in Nigeria

Benson, N. U. and Anake, W. U. and Etesin, Usoro M. (2014) Trace Metals Levels in Inorganic Fertilizers Commercially Available in Nigeria. Journal of Scientific Research & Reports, 3 (4). pp. 610-620.

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Aims: To investigate the concentrations of arsenic (As), cadmium (Cd), copper (Cu), lead (Pb), nickel (Ni), vanadium (V) and zinc (Zn) in commercially available inorganic fertilizers (calcium superphosphate and urea). Place and Duration of Study: Urea and superphosphate fertilizers were purchased from a local market in Uyo, Southern Nigeria. Methodology: A total of twenty seven fertilizer samples were randomly taken representing triplicate samples from three urea and six superphosphate original fertilizer bags. Each sample were digested and extracted using the ethylenediamine tetraacetic acid (EDTA) extraction technique. The elemental analysis was performed using an inductively coupled plasma atomic emission spectrophotometer (ICP-AES) (Optima 3000 – Perkin Elmer). Results: The analyses indicated the presence of trace metals in commercially available fertilizers sold in Nigeria. Cadmium was found in comparatively high concentrations. Zinc was found present in relatively high concentrations in both urea and phosphate fertilizer samples but As was found in low concentration. By comparison, the superphosphate

Item Type: Article
Uncontrolled Keywords: Trace metals; inorganic fertilizers; soil pollution; nutrient amendments
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User: Mrs Patricia Nwokealisi
Date Deposited: 09 Oct 2015 12:10
Last Modified: 09 Oct 2015 12:10

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