Wasay SA;Barrington S;Tokunaga S,Organic acids for the in situ remediation of soils polluted by heavy metals:Soil flushing in columns,Water Air and Soil Pollution？ ,2001, 127(02).
Neale C N;Bricka R M;Chao A C,Evaluating acids and chelating agents for removing heavy metals from contaminated soils,Environmental Progress？ ,1997, 16.
Hu H Q;He J Z;Li X Y,Effect of several organic acids on phosphate adsorption by variable charge soils of central Chin,Environment International,2001.
[7]
Susan Tandy ；Karin Bossart ；Roland Mueller ；Jens Ritschel ；Lukas Hauser ；Rainer Schulin ；Bernd Nowack,Extraction of Heavy Metals from Soils Using Biodegradable Chelating Agents,Environmental Science & Technology？,2004, 38(3).
[8]
Brown G A;Elliott H A,Influence of electrolytes on EDTA extraction of Pb from polluted soll,Water,Air & Soil Pollution？ ,1992, 62.
[9]
Ke XIN;LI Pei-jun;ZHOU Qi-xing.Removal of heavy metals from a contaminated soil using tartaric acid[J].Journal of Environmental Sciences,2006(4)
[10]
Bassi R. ；Simpson BK. ；Prasher SO.,Extraction of metals from a contaminated sandy soil using citric acid,Environmental Progress？,2000, 19(4).
[11]
Quevanvillcr P;Raurct G;Muntau H,Evaluation of a sequential extraction procedure for the determination of extractable trace metal contents in sediments,Fresenius\'Journal of Analytical Chemistry,1994.
[12]
Forstner U;Kernsten M,Chemistry and biology of solid waste,Beilin:Springer-Verlag,1988.
[13]
Tessier A;Campbell P G C;Bisson M,Sequential extraction procedure for the specification of particulate trace metals,Analytical Chemistry？ ,1979, 51(07).
[14]
周井刚;蔡信德;王永强,利用EDTA溶液淋洗修复重金属污染土壤,广州环境科学,2009(2).
[15]
Rauret G;Sahuquillo A;Davidson C,Improvement of the BCR three step sequential extraction procedure prior to the certification of new sediment and soil reference materials,Journal of Environmental Monitoring,1998.
[16]
USEPA,SW-846.Method 3060A,Alkaline digestion for hexavalent chromium,US:EPA,1996.
Liliane Jean ；Francois Bordas ；Jean-Claude Bellinger,Chromium and nickel mobilization from a contaminated soil using chelants,Environmental Pollution？,2007, 147(3).
[21]
陈英旭;何增耀;吴建平,土壤中铬的形态及其转化,环境科学,1994(3).
[22]
Reddy K R;Chinthamreddy S,Comparison of extractants for removing heavy metals from contaminated clayey soils,Soil and Sediment Contamination,2000(5).
