Study of iron and aluminum binding to Suwannee River fulvic acid using   absorbance and fluorescence spectroscopy: Comparison of data   interpretation based on NICA-Donnan and Stockholm humic models

doi:10.1016/j.watres.2013.06.022

CORC > 北京大学 > 环境科学与工程学院

	Study of iron and aluminum binding to Suwannee River fulvic acid using absorbance and fluorescence spectroscopy: Comparison of data interpretation based on NICA-Donnan and Stockholm humic models
	Yan, Mingquan ; Benedetti, Marc F. ; Korshin, Gregory V.
刊名	水研究
	2013
关键词	Absorbance Aluminum Fluorescence Iron NICA-Donnan Phenolic Stockholm Humic Model (SHM) DISSOLVED ORGANIC-MATTER PARALLEL FACTOR-ANALYSIS EXCITATION-EMISSION MATRIX METAL-ION BINDING PROTON-BINDING CATION-BINDING SUBSTANCES SPECTRA PARAMETERS COMPLEXATION
DOI	10.1016/j.watres.2013.06.022
英文摘要	This study examined the evolution of absorbance and fluorescence spectra of standard Suwannee River fulvic acid (SRFA) induced by its interactions with iron and aluminum. The results show that changes of SRFA absorbance are associated with a consistent response of the carboxylic and phenolic functional groups to iron and aluminum forming bonds with these groups, and their deprotonation induced by such binding. The observed changes of SRFA absorbance were quantified via the use of DSlope(325-375) parameter that determines the behavior of the slope of logarithms of SRFA absorbance in the range of wavelengths 325 -375 nm in the presence of varying concentrations of iron or aluminum. DSlope(325-375) values were correlated linearly with the concentration of SRFA-bound iron and aluminum determined using either NICA-Donnan or Stockholm Humic Model (SHM) but the correlation was stronger for the former model (R-2 > 0.98). The slopes of these correlations were similar for both iron and aluminum concentrations <10.0 mu M and at a wide pH range. Fluorescence of SRFA was responsive to metal binding but it changed less consistently in the presence of the examined metals, especially in the case of aluminum. The combination of these techniques can help explore in more detail manifestations of DOM site specificity at realistically low concentrations of DOM and metal ions. (C) 2013 Elsevier Ltd. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000324566400059&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Environmental; Environmental Sciences; Water Resources; SCI(E); EI; PubMed; 16; ARTICLE; 14; 5439-5446; 47
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/158811]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Yan, Mingquan,Benedetti, Marc F.,Korshin, Gregory V.. Study of iron and aluminum binding to Suwannee River fulvic acid using absorbance and fluorescence spectroscopy: Comparison of data interpretation based on NICA-Donnan and Stockholm humic models[J]. 水研究,2013.
APA	Yan, Mingquan,Benedetti, Marc F.,&Korshin, Gregory V..(2013).Study of iron and aluminum binding to Suwannee River fulvic acid using absorbance and fluorescence spectroscopy: Comparison of data interpretation based on NICA-Donnan and Stockholm humic models.水研究.
MLA	Yan, Mingquan,et al."Study of iron and aluminum binding to Suwannee River fulvic acid using absorbance and fluorescence spectroscopy: Comparison of data interpretation based on NICA-Donnan and Stockholm humic models".水研究 (2013).