6Peters R W. Chelant extraction of heavy metals from contaminated soils[J].Journal of Hazardous Materials,1999,(1/2):151-210.
7Evangelou M W H,Ebel M,Schaeffer A. Chelate assisted phytoextraction of heavy metals from soil:Effect,mechanism,toxicity,and fate of chelating agents[J].Chemosphere,2007,(6):989-1003.doi:10.1016/j.chemosphere.2007.01.062.
8周启星;宋玉芳.污染上壤修复原理与方法[M]北京:科学出版社,2004263-279.
9Neza Finzgar,Domen Lestan. Heap leaching of Pb and Zn contaminated soil using ozone/UV treatment of EDTA extractants[J].Chemosphere,2006,(10):1736-1743.
10Andrew Hong P K,Chelsea Li,Weimin Jiang. Agents for Extraction of Heavy Metals from Soil[M].New York:Academic/Plenum Publishers,2000.1015-1031.