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题名: Influence of methanol on retention of hydrophobic organic chemicals in soil leaching column chromatography
作者: Xu, F;  Liang, XM;  Lin, BC;  Su, F;  Schramm, KW;  Kettrup, A
关键词: retention equation ;  soil leaching column chromatography ;  capacity factor ;  leaching ;  methanol-water mixture ;  hydrophobic organic chemical
刊名: CHEMOSPHERE
发表日期: 2002-07-01
卷: 48, 期:1, 页:149-156
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: The influence of methanol in methanol-water mixed eluents on the capacity factor (P), an important parameter which could depict leaching potential of hydrophobic organic chemicals (HOCs) in soil leaching column chromatography (SLCC), was investigated. Two reference soils, GSE 17201 obtained from Bayer Landwirtschaftszentrum, Monheim, Germany and SP 14696 from LUFA, Spencer, Germany, were used as packing materials in soil columns, and isocratic elution with methanol-water mixtures at different volume fractions of methanol (phi) were tested. Shortterm exposure of the column (packed with the GSE 17201 soil) to the eluents increased solute retention by a certain (23% log-unit) degree evaluated through a correlation with the retention on the same soil column but unpreconditioned by methanol-containing eluents. Long-term exposure of soil columns to the eluents did not influence the solute retention. A log-linear equation, log k' = log k'(w) - Sphi, could well and generally describe the retention of HOCs in SLCC. For the compounds of homologous series, logk'(w), had good linear relationship with S, indicating the hydrophobic partition mechanism existing in the retention process. (C) 2002 Elsevier Science Ltd. All rights reserved.
关键词[WOS]: SORPTION ;  MODEL ;  COEFFICIENTS ;  GROUNDWATER ;  COSOLVENTS ;  PESTICIDES ;  TRANSPORT ;  ATRAZINE
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000176576200018
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/85469
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Acad Sinica, Dalian Inst Chem Phys, Dalian 116011, Peoples R China
2.GSF, Natl Res Ctr Enviornm & Hlth, Inst Ecol Chem, D-85764 Neuherberg, Germany

Recommended Citation:
Xu, F,Liang, XM,Lin, BC,et al. Influence of methanol on retention of hydrophobic organic chemicals in soil leaching column chromatography[J]. CHEMOSPHERE,2002,48(1):149-156.
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