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Aluminum speciation of coagulants with low concentration: Analysis by electrospray ionization mass spectrometry
Zhao, He1,2; Liu, Huijuan1; Qu, Jiuhui1; Liu, HJ
2011-04-20
Source PublicationCOLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN0927-7757
Volume379Issue:1-3Pages:43-50
AbstractAluminum speciation of coagulants with low concentration was investigated in detail by electrospray ionization mass spectrometry (ESI-MS). In particular, comparison with (27)Al nuclear magnetic resonance ((27)Al NMR) and Ferron colorimetric method for aluminum speciation of coagulants was discussed. The results indicated that various hydrolyzed aluminum species (monomeric, dimeric, trimeric and tetrameric aluminum species), which could not be identified by other methods, appeared in ESI-MS spectra. Thus. ESI-MS method was much better for hydrolyzed aluminum species in low concentration. In this paper. sample cone voltage was an important operating parameter during ESI-MS detection, and optimum voltage was 70V. Too low (40V) or high (150V) sample cone voltage was not suitable for detecting all aluminum species. This study also evaluated the effects of coagulant concentration, aging, pH value and organic matter on aluminum species distribution. The results indicated that the distribution of hydrolyzed aluminum species at low concentration was largely dependent on the solution pH. At higher pH conditions, aging (8-12h) may influence aluminum hydrolysis. Additionally, after adding salicylic acid into coagulant solutions. speciation and stability for both Al(13) species and aluminum-salicylate complexes varied significantly at different pH values. (C) 2010 Elsevier B.V. All rights reserved.
KeywordElectrospray Ionization Aluminum Speciation Coagulant Hydrolyzed Species
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.colsurfa.2010.11.045
Indexed BySCI ; ISTP
Language英语
WOS KeywordNUCLEAR-MAGNETIC-RESONANCE ; BY-PRODUCT PRECURSORS ; POLYALUMINUM CHLORIDE ; HYDROLYSIS PRODUCTS ; COMPLEX-FORMATION ; SALICYLATE IONS ; MECHANISM ; SALTS ; KINETICS ; POLYMERIZATION
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000289920200009
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5046
Collection湿法冶金清洁生产技术国家工程实验室
Corresponding AuthorLiu, HJ
Affiliation1.Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhao, He,Liu, Huijuan,Qu, Jiuhui,et al. Aluminum speciation of coagulants with low concentration: Analysis by electrospray ionization mass spectrometry[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2011,379(1-3):43-50.
APA Zhao, He,Liu, Huijuan,Qu, Jiuhui,&Liu, HJ.(2011).Aluminum speciation of coagulants with low concentration: Analysis by electrospray ionization mass spectrometry.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,379(1-3),43-50.
MLA Zhao, He,et al."Aluminum speciation of coagulants with low concentration: Analysis by electrospray ionization mass spectrometry".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 379.1-3(2011):43-50.
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