Naslov
The determination of the extractability of selected elements from agricultural soil

Autori
Zeiner, Michaela ; Juranović Cindrić, Iva ; Lovrenčić Mikelić, Ivanka ; Medunić, Gordana ; Kampić, Štefica ; Tomašić, Nenad ; Stingeder, Gerhard

Izvornik
Environmental monitoring and assessment (0167-6369) 185 (2013), 1; 223-229

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
metals; ICP-OES; agricultural soil; extractability; XRF

Sažetak
Concentrations of Ag, Al, Ba, Cd, Co, Cr, Cu, Fe, K, Mn, Na, Ni, Pb, Sr and Zn - isolated by sequential extraction steps from apple orchard soil - were analyzed by inductively coupled plasma–atomic emission spectroscopy and compared to the total amount of metal in soil determined by XRF. The extractable amount of each metal was calculated by the extraction yields of the four steps. The LODs of the different elements in all extracts ware below 3 µg/L except for Ba (steps 1 and 2) ; Cu (step 1) ; Fe (all steps) ; K (steps 1-3) ; Mn (step 2) ; Na (steps 1-3) ; Ni (step 1) ; Pb (steps 1 and 4) and Zn (steps 1 and 2). The highest LOD (> 10 µg/L) was found for Fe, K and Na (step 1). The recovery of all metals after four sequential extraction steps was 90-112%. The repeatability (<1.1%), the intermediate precision (<5.3%), the day-to-day reproducibility (<6.2%), and the overall uncertainty of measurement (approx. 4-8.5%) for all analyzed metals supports the choice of the method used.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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