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Fractionation mechanisms of rare earth elements (REEs) in hydroponic wheat: An application for metal accumulation by plants
Ding, SM; Liang, T; Zhang, CS; Huang, ZC; Xie, YN; Chen, TB; Xie YN(谢亚宁)
2006
发表期刊ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷号40期号:8页码:2686-2691
通讯作者Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China ; Chinese Acad Sci, Nanjing Inst Geog & Limnol, Nanjing 210008, Peoples R China ; Natl Univ Ireland Univ Coll Galway, Dept Geog, Galway, Ireland ; Chinese Acad Sci, Inst High Energy Phys, State Key Lab Synchrotron Radiat, Beijing 100039, Peoples R China
文章类型Article
摘要Fractionations of rare earth elements (REES) in wheat (Triticum aestivum L.) were observed through application of exogenous mixed REES under hydroponic conditions. Middle REE (MREE), light REE (LREE), and heavy REE (HREE) enrichments were found in roots, stems, and leaves, respectively, accompanied by the tetrad effect (an effect that can cause a split of REE patterns into four consecutive segments) in these organs. Investigations into REE speciation in roots and in the xylem sap with X-ray absorption spectroscopy (XAS) and nanometer-sized TiO2 adsorption techniques, associated with other controlled experiments, demonstrated that REE fractionations in wheat were caused by the combined effects of chemical precipitation, cell wall absorption, and solution complexation by organic ligands in the xylem vessels. REE fractionations in wheat, which were derived from the small differences of chemical properties across REE series, may reflect a sensitive internal chemical environment that influences plant accumulation for REES and their analogues actinide radionuclides.
学科领域Engineering; Environmental Sciences & Ecology
研究领域[WOS]Engineering ; Environmental Sciences & Ecology ; Engineering ; Environmental Sciences & Ecology
DOI10.1021/es052091b
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语种英语
研究领域[WOS]Engineering ; Environmental Sciences & Ecology ; Engineering ; Environmental Sciences & Ecology
WOS类目Engineering, Environmental ; Environmental Sciences
WOS记录号WOS:000236992700032
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被引频次:30[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239810
专题多学科研究中心
作者单位中国科学院高能物理研究所
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Ding, SM,Liang, T,Zhang, CS,et al. Fractionation mechanisms of rare earth elements (REEs) in hydroponic wheat: An application for metal accumulation by plants[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2006,40(8):2686-2691.
APA Ding, SM.,Liang, T.,Zhang, CS.,Huang, ZC.,Xie, YN.,...&谢亚宁.(2006).Fractionation mechanisms of rare earth elements (REEs) in hydroponic wheat: An application for metal accumulation by plants.ENVIRONMENTAL SCIENCE & TECHNOLOGY,40(8),2686-2691.
MLA Ding, SM,et al."Fractionation mechanisms of rare earth elements (REEs) in hydroponic wheat: An application for metal accumulation by plants".ENVIRONMENTAL SCIENCE & TECHNOLOGY 40.8(2006):2686-2691.
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