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An improved method for the extraction of low molecular weight organic acids in variable charge soils
Wang, Xingxiang; Li, Qingman; Ding, Jianhua; Luo, Mingbiao; Zhang, Taolin; Zhou, Yiyong; Li, QM, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2007-05-01
Source PublicationANALYTICAL SCIENCES
ISSN0910-6340
Volume23Issue:5Pages:539-543
AbstractDue to specific adsorption to variable charge soils, low molecular weight organic acids (LMWOAs) have not been sufficiently extracted, even if common extractants, such as water and 0.1 M sodium hydroxide (NaOH), were employed. In this work, the method for extracting LMWOAs in soils with 0.1 M NaOH was improved for variable charge soils; e.g. 1.0 M potassium fluoride (KF) with pH 4.0 was applied as an extractant jointed with 0.1 M NaOH based on its stronger ability to change the electrochemical properties of variable charge soils by specific adsorption. With the proposed method, the recoveries of oxalic, tartaric, malic, citric and fumaric acids were increased from 83 4, 93 1, 22 2, 63 +/- 5 and 84 +/- 3% to 98 +/- 2, 100 +/- 2, 85 +/- 2, 90 +/- 2 and 89 +/- 2%, respectively, compared with NaOH alone. Simultaneously, the LMWOAs in Agri-Udic Ferrosol with field moisture were measured with a satisfactory result.; Due to specific adsorption to variable charge soils, low molecular weight organic acids (LMWOAs) have not been sufficiently extracted, even if common extractants, such as water and 0.1 M sodium hydroxide (NaOH), were employed. In this work, the method for extracting LMWOAs in soils with 0.1 M NaOH was improved for variable charge soils; e.g. 1.0 M potassium fluoride (KF) with pH 4.0 was applied as an extractant jointed with 0.1 M NaOH based on its stronger ability to change the electrochemical properties of variable charge soils by specific adsorption. With the proposed method, the recoveries of oxalic, tartaric, malic, citric and fumaric acids were increased from 83 4, 93 1, 22 2, 63 +/- 5 and 84 +/- 3% to 98 +/- 2, 100 +/- 2, 85 +/- 2, 90 +/- 2 and 89 +/- 2%, respectively, compared with NaOH alone. Simultaneously, the LMWOAs in Agri-Udic Ferrosol with field moisture were measured with a satisfactory result.
SubtypeArticle
KeywordNorway Spruce Forest Soil Chromatography Rhizosphere Anions Plants Roots Hplc
DepartmentChinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China; E China Inst Technol, Fuzhou 344000, Peoples R China
Subject AreaChemistry, Analytical
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Analytical
WOS IDWOS:000246716000007
WOS KeywordNORWAY SPRUCE ; FOREST SOIL ; CHROMATOGRAPHY ; RHIZOSPHERE ; ANIONS ; PLANTS ; ROOTS ; HPLC
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8610
Collection期刊论文
Corresponding AuthorLi, QM, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China
3.E China Inst Technol, Fuzhou 344000, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xingxiang,Li, Qingman,Ding, Jianhua,et al. An improved method for the extraction of low molecular weight organic acids in variable charge soils[J]. ANALYTICAL SCIENCES,2007,23(5):539-543.
APA Wang, Xingxiang.,Li, Qingman.,Ding, Jianhua.,Luo, Mingbiao.,Zhang, Taolin.,...&Li, QM, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2007).An improved method for the extraction of low molecular weight organic acids in variable charge soils.ANALYTICAL SCIENCES,23(5),539-543.
MLA Wang, Xingxiang,et al."An improved method for the extraction of low molecular weight organic acids in variable charge soils".ANALYTICAL SCIENCES 23.5(2007):539-543.
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