TRACE-METAL REDISTRIBUTION DURING EXTRACTION OF MODEL SOILS BY ACETIC-ACID SODIUM-ACETATE

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	TRACE-METAL REDISTRIBUTION DURING EXTRACTION OF MODEL SOILS BY ACETIC-ACID SODIUM-ACETATE
	TU, Q; SHAN, XQ; QIAN, J; NI, ZM
刊名	ANALYTICAL CHEMISTRY
	1994
卷号	66 期号:21 页码:3562-3568
英文摘要	A number of model soils synthesized with various known amounts of natural minerals and humic acid were employed to study copper and lead redistribution during extraction by 1 M HOAc/NaOAc. The adsorption intensities of the individual constituent phases were measured from adsorption isotherms, and the redistribution behavior was studied by the standard additions method. Humic acid and pyrolusite are found to exhibit the highest binding affinity for Cu and Pb, respectively, and their relative importance relies upon both their binding ability and their abundance. The extractable concentrations of the metals and the extent of recovery depend largely upon the composition of the model soils, owing to different binding strength presented in the various systems investigated. The presence of dissolved humic acid during extraction has a significant influence on metal redistribution, as evidenced by the increase in the adsorption of Cu and decrease in the adsorption of Pb. In view of the diverse compositions and various competing reactions involved, it is recognized that redistribution behavior will vary widely among both natural soil systems and given metals.
研究领域[WOS]	Chemistry
WOS记录号	WOS:A1994PP23500007
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/24458]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	TU, Q,SHAN, XQ,QIAN, J,et al. TRACE-METAL REDISTRIBUTION DURING EXTRACTION OF MODEL SOILS BY ACETIC-ACID SODIUM-ACETATE[J]. ANALYTICAL CHEMISTRY,1994,66(21):3562-3568.
APA	TU, Q,SHAN, XQ,QIAN, J,&NI, ZM.(1994).TRACE-METAL REDISTRIBUTION DURING EXTRACTION OF MODEL SOILS BY ACETIC-ACID SODIUM-ACETATE.ANALYTICAL CHEMISTRY,66(21),3562-3568.
MLA	TU, Q,et al."TRACE-METAL REDISTRIBUTION DURING EXTRACTION OF MODEL SOILS BY ACETIC-ACID SODIUM-ACETATE".ANALYTICAL CHEMISTRY 66.21(1994):3562-3568.