Evaluation of the Interactions between Water Extractable Soil Organic Matter and Metal Cations ( Cu( II), Eu( III)) Using Excitation- Emission Matrix Combined with Parallel Factor Analysis

doi:10.3390/ijms160714464

	Evaluation of the Interactions between Water Extractable Soil Organic Matter and Metal Cations ( Cu( II), Eu( III)) Using Excitation- Emission Matrix Combined with Parallel Factor Analysis
	Wei, J; Han, L; Song, J; Chen, MF; Chen, MF (reprint author), Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, 71 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China. jwei@yic.ac.cn; hanlu@issas.ac.cn; jingsong@issas.ac.cn; mfchen@issas.ac.cn
发表期刊	INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
ISSN	1422-0067
	2015-07-01
卷号	16 期号:7 页码:14464-14476
关键词	Water Extractable Organic Matter Copper Europium Excitation-emission Matrix Parallel Factor Analysis
DOI	10.3390/ijms160714464
产权排序	[Wei, Jing] Chinese Acad Sci, Shandong Prov Key Lab Coastal Environm Proc, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Environm Proc & Ecol Remediat,YIC, Yantai 264003, Shandong, Peoples R China; [Han, Lu; Song, Jing; Chen, Mengfang] Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China
作者部门	中科院海岸带环境过程与生态修复重点实验室
英文摘要	The objectives of this study were to evaluate the binding behavior of Cu(II) and Eu(III) with water extractable organic matter (WEOM) in soil, and assess the competitive effect of the cations. Excitation-emission matrix (EEM) fluorescence spectrometry was used in combination with parallel factor analysis (PARAFAC) to obtain four WEOM components: fulvic-like, humic-like, microbial degraded humic-like, and protein-like substances. Fluorescence titration experiments were performed to obtain the binding parameters of PARAFAC-derived components with Cu(II) and Eu(III). The conditional complexation stability constants (logK(M)) of Cu(II) with the four components ranged from 5.49 to 5.94, and the Eu(III) logK(M) values were between 5.26 to 5.81. The component-specific binding parameters obtained from competitive binding experiments revealed that Cu(II) and Eu(III) competed for the same binding sites on the WEOM components. These results would help understand the molecular binding mechanisms of Cu(II) and Eu(III) with WEOM in soil environment.
文章类型	Article
收录类别	SCI
语种	英语
关键词[WOS]	RARE-EARTH-ELEMENTS ; DONNAN MODEL PARAMETERS ; HUMIC SUBSTANCES ; FLUORESCENCE SPECTROSCOPY ; ION-BINDING ; STABILITY-CONSTANTS ; AMENDED SOILS ; COPPER ; ACIDS ; COMPLEXATION
研究领域[WOS]	Biochemistry & Molecular Biology ; Chemistry
WOS记录号	WOS:000359900100011
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/10021
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
通讯作者	Chen, MF (reprint author), Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, 71 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China. jwei@yic.ac.cn; hanlu@issas.ac.cn; jingsong@issas.ac.cn; mfchen@issas.ac.cn
推荐引用方式 GB/T 7714	Wei, J,Han, L,Song, J,et al. Evaluation of the Interactions between Water Extractable Soil Organic Matter and Metal Cations ( Cu( II), Eu( III)) Using Excitation- Emission Matrix Combined with Parallel Factor Analysis[J]. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,2015,16(7):14464-14476.
APA	Wei, J.,Han, L.,Song, J.,Chen, MF.,Chen, MF .,...&mfchen@issas.ac.cn.(2015).Evaluation of the Interactions between Water Extractable Soil Organic Matter and Metal Cations ( Cu( II), Eu( III)) Using Excitation- Emission Matrix Combined with Parallel Factor Analysis.INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,16(7),14464-14476.
MLA	Wei, J,et al."Evaluation of the Interactions between Water Extractable Soil Organic Matter and Metal Cations ( Cu( II), Eu( III)) Using Excitation- Emission Matrix Combined with Parallel Factor Analysis".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 16.7(2015):14464-14476.

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