核素迁移和腐殖酸

HUMICS AND RADIONUCLIDES MIGRATION

摘要: 简要阐述了腐殖酸的分子量、金属离子与腐殖酸相互作用的性质、腐殖酸的电位滴定行为、腐殖酸的络合物的稳定常数以及腐殖酸的还原作用等基本化学性质,讨论了腐殖酸的络合作用和还原作用对地质介质中核素迁移的重要性。
- 胡敏酸 /
- 富里酸 /
- 络合作用 /
- 还原作用 /
- 核素迁移
Abstract: The molecular weight,potentiometric behaviors,complexation,reduction of humic and fulvic acids are discussed and the binding of metal cations with humic and fulvic acids as a polyelcctrolytes are ana lyzed. The strong complexation and reduction of metal ions with humics are believed to be of great importance to an understanding of the migration of radionuclides in geological media.
- Humic acid /
- Fulvic acid /
- Complexation /
- Reduction /
- Radionuclides migration.

[1]	刘元方.核化学与放射化,学.1990,12:1．
[2]	Aiken ,G. R. et al. Humic Substances in Soil Sediment and Water, ed. Akien G R et al, John Wiley & Sons. New York. 1985
[3]	Choppin G R. Radiohimica Aeta, 1988,44/45: 23．
[4]	Gamble D S et al, Anal Chem, 1980． 52: 1901．
[5]	文启孝等编著,土壤有机质研究疗法.北京:农业出版社:1981:166．
[6]	Schnitzer M. 12th International Congress of Soil Sci, 1982． (5) : 67．
[7]	Gamble D S et al. Ion Exchange and Solvent Extraction.Vol. 9． ed. Marinsky J A et al. New York. 1985:373．
[8]	Manning G S. Biophysical Chemistry, 1977,7: 141．
[9]	(a)张保林,陶祖贻.化学试剂.1988． 10:196． (b)王长守.陶祖贻.高等学校化学学报,1991． 12:644_.
[10]	Tortes R A, Choppin G R. Radiochimica Acta, 1984, 35: 143．
[11]	Takamatsu T, Yoshide T. Soil Sci, 1978,125: 377．
[12]	Sposito G et al. Soil Sci Soc Am J, 1977,41: 1119．
[13]	Ephraim J et al. Environ Sci Technol, 1986,20,351．
[14]	Perdue E M, Lytle C R. Environ Sci Technol, 1983,17: 654．
[15]	Staunton S et al. Radiochimica Acta, 1990,49: 147．
[16]	Weber,J H. Humic Substances and Their Role in the Environment. ed. Frimmel F H. Christman R F. John Wiley & Sons,, New York. 1988:165．
[17]	Rashid M A. Geochemistry of Marine Humic Substances. Chap. 4 and 5． Springer-Verlag.New York. 1985．