Z- W Zhang,J- B Qu,et al. Maize and foxtail millet as substantial sources of dietary lead intake[J].The Science of the Total Environment, 1997,208:81- 88.
[3]
Tessler A,Campbell P G C,Blsson M.Sequential Extraction Procedure for the Speciation of Particulate Trace Metals[J].Analytical chemistry, 1979,51(7): 844- 851.
Isabel Cacador, Carios Vale, Fernando Catarino. Accumulation of Pb, Zn,Cu,Cr and Ni in Sediments between Roots of the Tagus Estuary Salt Marshes, Portugal[J]. Estuarine Coastal and Shelf Sciense,1996,(42): 393- 403.
