Avtor/Urednik		Šlejkovec, Zdenka; van Elteren, Johannes T; Kroon, Koos J
Naslov		Extraction of adsorbed arsenic from IAEA-SOIL-5
Tip		članek
Vir		Int J Environ Anal Chem
Vol. in št.		Letnik 83, št. 2
Leto izdaje		2003
Obseg		str. 127-34
Jezik		eng
Abstrakt		The following parameters influencing the extraction efficiency of adsorbed arsenic (arsenate) from IAEA-SOIL-5 were investigated: (a) sonication or shaking time and temperature and (b) extractant type (MgCl2 or NaH2PO4 solution), concentration and pH. Sonication of 250 mg material for 1h at 30C with 10mL 1molL-1 phosphate at pH 4.0 yielded a maximum arsenate efficiency of 31.9%. The remainder of the arsenate is probably incorporated in the latiice of minerals and not easily available (exchangeable via ion exchange mechanisms).
Deskriptorji		ARSENIC SONICATION