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Study on C-Functional Groups of Soil Humus Fractions Affected by Phosphate Using C 1s Near-edge X-ray Absorption Fine Structure Spectroscopy
Luo Lei; Lu Ji-Tao; Xu Chuang; Guo Zhi; Zhang Shu-Zhen
2013
Source PublicationCHINESE JOURNAL OF ANALYTICAL CHEMISTRY
ISSN0253-3820
Volume41Issue:8Pages:CONCATENATE(Sheet1!I329,-Sheet1!J329)
AbstractSynchrotron based near-edge X-ray absorption fine structure (NEXAFS) spectroscopy was applied to study the C-functional group chemistry of various soil humus fractions (including fulvic acid, humic acid and humin) and to explore the reaction mechanisms between phosphate and humus. The results indicated that the humus fractions contained similar functional groups but at different proportions. Humic acid and humin, with the increasing acid. insolubility, exhibited higher content of hydrophobic functional groups and higher aromaticity while lower carboxylic C when compared with fulvic acid. The presence of phosphate could favor the release of the hydrophilic carboxylic functional groups into soil solutions through substitution reactions as well as electrostatic effects, and thus exert significant effects on the functional group chemistry of soil humic substances. The results will be great helpful to study the speciation and composition of C-functional groups with NEXAFS spectroscopy and to understand the reaction mechanisms of phosphate in soil micro-interfaces.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000324172400027
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13928
Collection中科院上海应用物理研究所2011-2020年
Recommended Citation
GB/T 7714
Luo Lei,Lu Ji-Tao,Xu Chuang,et al. Study on C-Functional Groups of Soil Humus Fractions Affected by Phosphate Using C 1s Near-edge X-ray Absorption Fine Structure Spectroscopy[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2013,41(8):CONCATENATE(Sheet1!I329,-Sheet1!J329).
APA Luo Lei,Lu Ji-Tao,Xu Chuang,Guo Zhi,&Zhang Shu-Zhen.(2013).Study on C-Functional Groups of Soil Humus Fractions Affected by Phosphate Using C 1s Near-edge X-ray Absorption Fine Structure Spectroscopy.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,41(8),CONCATENATE(Sheet1!I329,-Sheet1!J329).
MLA Luo Lei,et al."Study on C-Functional Groups of Soil Humus Fractions Affected by Phosphate Using C 1s Near-edge X-ray Absorption Fine Structure Spectroscopy".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 41.8(2013):CONCATENATE(Sheet1!I329,-Sheet1!J329).
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