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Optimization of an effective extraction procedure for the analysis of microcystins in soils and lake sediments
Chen, W; Li, L; Gan, NQ; Song, LR; Song, LR, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2006-09-01
Source PublicationENVIRONMENTAL POLLUTION
ISSN0269-7491
Volume143Issue:2Pages:241-246
AbstractMicrocystin analysis in sediments and soils is considered very difficult due to low recovery for extraction. This is the primary limiting factor for understanding the fate of toxins in the interface between water and sediment in both the aquatic ecosystem as well as in soils. In the present study, a wide range of extraction solvents were evaluated over a wide range of pH, extraction approaches and equilibration time to optimize an effective extraction procedure for the analysis of microcystins in soils and lake sediments. The number of extractions required and acids in extraction solutions were also studied. In this procedure, EDTA-sodium pyrophosphate solution was selected as an extraction solvent based on the adsorption mechanism study. The optimized procedure proved to be highly efficient and achieved over 90% recovery. Finally, the developed procedure was applied to field soil and sediment sample collected from Chinese lakes during bloom seasons and microcystins were determined in six of ten samples. (c) 2005 Elsevier Ltd. All rights reserved.; Microcystin analysis in sediments and soils is considered very difficult due to low recovery for extraction. This is the primary limiting factor for understanding the fate of toxins in the interface between water and sediment in both the aquatic ecosystem as well as in soils. In the present study, a wide range of extraction solvents were evaluated over a wide range of pH, extraction approaches and equilibration time to optimize an effective extraction procedure for the analysis of microcystins in soils and lake sediments. The number of extractions required and acids in extraction solutions were also studied. In this procedure, EDTA-sodium pyrophosphate solution was selected as an extraction solvent based on the adsorption mechanism study. The optimized procedure proved to be highly efficient and achieved over 90% recovery. Finally, the developed procedure was applied to field soil and sediment sample collected from Chinese lakes during bloom seasons and microcystins were determined in six of ten samples. (c) 2005 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordMicrocystin Extraction Method Soils Lake Sediments Edta Sodium Pyrophosphate Optimization
DepartmentChinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Subject AreaEnvironmental Sciences
DOI10.1016/j.envpol.2005.11.030
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000238277500007
WOS KeywordPERFORMANCE LIQUID-CHROMATOGRAPHY ; CYANOBACTERIAL HEPATOTOXINS ; WATER ; LR ; ADSORPTION ; TOXINS ; PURIFICATION ; DEGRADATION ; VARIANTS ; SAMPLES
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Cited Times:48[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8942
Collection期刊论文
Corresponding AuthorSong, LR, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen, W,Li, L,Gan, NQ,et al. Optimization of an effective extraction procedure for the analysis of microcystins in soils and lake sediments[J]. ENVIRONMENTAL POLLUTION,2006,143(2):241-246.
APA Chen, W,Li, L,Gan, NQ,Song, LR,&Song, LR, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2006).Optimization of an effective extraction procedure for the analysis of microcystins in soils and lake sediments.ENVIRONMENTAL POLLUTION,143(2),241-246.
MLA Chen, W,et al."Optimization of an effective extraction procedure for the analysis of microcystins in soils and lake sediments".ENVIRONMENTAL POLLUTION 143.2(2006):241-246.
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