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学科主题: Chemistry, Multidisciplinary; Oceanography
题名: Dissolution of aerosol-derived iron in seawater: Leach solution chemistry, aerosol type, and colloidal iron fraction
作者: Aguilar-Islas, AM ; Wu, JF ; Rember, R ; Johansen, AM ; Shank, LM
通讯作者: aaguilar@iarc.uaf.edu
关键词: Aerosol iron ; Dissolved iron ; Soluble iron ; Colloidal iron ; Aerosol solubility in seawater
刊名: MARINE CHEMISTRY
发表日期: 2010
卷: 120, 期:40547, 页:25-33
收录类别: sci
部门归属: [Aguilar-Islas, Ana M.; Wu, Jingfeng; Rember, Robert] Univ Alaska Fairbanks, Int Arctic Res Ctr, Fairbanks, AK 99775 USA; [Wu, Jingfeng] Chinese Acad Sci, Key Lab Trop Marine Environm Dynam, S China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China; [Johansen, Anne M.] Cent Washington, Dept Chem, Ellensburg, WA 98926 USA; [Shank, Lindsey M.] Univ Hawaii Manoa, Dept Oceanog, Honolulu, HI 96822 USA
项目归属: LED
摘要: Experiments were conducted using a semi-continuous batch protocol to leach iron from aerosol samples. In this procedure, aerosol samples were leached in an all-Teflon flow-through reaction chamber by multiple (3-4) aliquots (similar to 40 mL) of leaching solution per predetermined leaching period. Several types of aerosols and leaching solutions were tested. The percent iron solubility obtained from aerosols collected in two urban regions was lower (similar to 1%) than the solubility from samples collected in the open ocean (6-13%). This regional variability was greater than the variability obtained when leaching the same aerosols using different leaching solutions. A review of field and laboratory studies from the literature also suggests that different types of aerosols produce more variability in aerosol iron solubility estimates than do different leaching protocols. Colloidal iron was the dominant fraction of aerosol derived dissolved iron in all the experiments carried out during this study, suggesting that the dissolution of aerosol iron in seawater is dominated by the colloidal iron fraction. (C) 2009 Elsevier B.V. All rights reserved.
原文出处: 查看原文
WOS记录号: WOS:000279066700004
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/6285
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Aguilar-Islas, AM; Wu, JF; Rember, R; Johansen, AM; Shank, LM.Dissolution of aerosol-derived iron in seawater: Leach solution chemistry, aerosol type, and colloidal iron fraction,MARINE CHEMISTRY,2010,120(40547):25-33
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文件名: Dissolution of aerosol-derived iron in seawater Leach solution chemistry, aerosol type, and colloidal iron fraction.pdf
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