Sequential Extraction Procedure for the Determination of Some Trace Elements in Fertilizer Samples

2014 ◽  
Vol 97 (4) ◽  
pp. 1034-1038 ◽  
Author(s):  
Yunus Emre Unsal ◽  
Mustafa Tuzen ◽  
Mustafa Soylak

Abstract Total concentration of metal ions at trace levels does not give sufficient information about toxicity and biological availability of these elements in fertilizer samples. In the presented work, a sequential extraction procedure modified by the European Community Bureau of Reference (BCR) was applied to fractionate Cd, Cr, Co, Cu, Fe, Pb, Mn, Ni, and Zn levels in two fertilizer samples collected from cooperative agricultural retailers. The fractions extracted were exchangeable/dilute acid soluble, reducible bound to Fe/Mn oxides, oxidizable bound to organic matter and sulfides, and residual. The determination of analyte elements was done by flame atomic absorption spectrometry. The accuracy of the procedure was validated with BCR-701 sediment certified reference material. The RSD of the procedure was less than 10%.

2013 ◽  
Vol 96 (1) ◽  
pp. 166-170 ◽  
Author(s):  
Huseyin Altundag ◽  
Mustafa Sahin Dundar ◽  
Secil Dogancı ◽  
Muhammed Celik ◽  
Mustafa Tuzen

Abstract In general, dust is considered as house or street dust. Indoor dust, as a contamination source, has been studied for many years. In this work, the original Community Bureau of Reference of the European Commission (BCR) three-stage sequential extraction procedure was applied to the fractionation of Cr, Cu, Fe, Mn, Pb, and Zn in 20 house dust samples from five different areas of Sakarya, Turkey. Acetic acid, hydroxylammonium chloride, and hydrogen peroxide plus ammonium acetate were used for the first, second, and third steps of the BCR method, respectively. The extracts were analyzed for the studied heavy metals using flame atomic absorption spectrometry. Validation of the results was performed by using a standard reference material (BCR 701 Sediment) to certify the experimental results obtained and to evaluate the reliability of the method used. The elemental loadings typically increased in magnitude according to the area order: İzmit Caddesi>Ankara Caddesi>Erenler>Karaman>Korucuk. The results were in agreement with values reported in the literature.


Talanta ◽  
2010 ◽  
Vol 82 (2) ◽  
pp. 582-586 ◽  
Author(s):  
M. Žemberyová ◽  
I. Hagarová ◽  
J. Zimová ◽  
J. Barteková ◽  
H.-M. Kuss

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