Nano-SIMS for soil science - exploring elemental distribution, formation and properties of submicron sized particles in soils

用于土壤科学的纳米 SIMS - 探索土壤中亚微米颗粒的元素分布、形成和特性

• 批准号: 119111086
• 负责人: Professorin Dr. Ingrid Kögel-Knabner
• 金额: --
• 依托单位: Lehrstuhl für Bodenkunde
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/119111086?language=en
• 关键词: Nano; SIMS; soil; science; exploring

We apply for a NanoSIMS 50L ion microprobe instrument for the analysis of soil biogeochemical properties. The specific features of the novel NanoSIMS 50L microprobe technology with the simultaneous analysis of up to seven ion species with high sensitivity and resolution make it an unprecedented tool for the analysis of biogeochemical processes and properties of soils and thereby will boost our ability to locate the association of elements/isotopes in soil structural components at the submicron scale, especially in combination with well-established labelling techniques. NanoSIMS will thus help to unravel the heterogeneous composition and three-dimensional architecture of submicron sized organo-mineral associations in soils. Our research will first focus on the simultaneous analysis of the spatial distribution of C, N, Si and Fe in organo-mineral associations and in a second step be applied to labelling studies: This unique combination provides one of the most promising approaches for exploring the C and N cycle of soils at a resolution not possible before. The NanoSIMS technique introduces new scales to combined multielement and isotope measurements at the submicron scale and thus will allow a major step forward in the understanding of soil formation, with significant implications for our concepts of the soil C and N cycle, soil structural stability, and the sorptive properties of the soil interface.

我们申请了NanoSIMS 50L离子探针仪用于土壤地球化学性质的分析。新型NanoSIMS 50L微探针技术的特定功能，可同时分析多达7种离子种类，具有高灵敏度和分辨率，使其成为分析土壤地球化学过程和性质的前所未有的工具，从而提高我们在亚微米尺度上定位土壤结构组分中元素/同位素关联的能力，特别是与成熟的标记技术相结合。因此，NanoSIMS将有助于解开亚微米大小的有机无机协会在土壤中的异质性组成和三维结构。我们的研究将首先集中在C，N，Si和Fe在有机矿物协会的空间分布的同时分析，并在第二步被应用于标记研究：这种独特的组合提供了一个最有前途的方法来探索土壤的C和N循环在一个决议之前是不可能的。NanoSIMS技术引入了新的尺度相结合的多元素和同位素测量在亚微米尺度，从而将允许一个重要的一步，在理解土壤形成，与我们的概念的土壤C和N循环，土壤结构稳定性，土壤界面的吸附性能的显着影响。

项目成果

NanoSIMS as a tool for characterizing soil model compounds and organomineral associations in artificial soils

• DOI: 10.1007/s11368-011-0386-8
• 发表时间: 2012-01-01
• 期刊: JOURNAL OF SOILS AND SEDIMENTS
• 影响因子: 3.6
• 作者: Heister, Katja;Hoeschen, Carmen;Koegel-Knabner, Ingrid
• 通讯作者: Koegel-Knabner, Ingrid

Advanced spectroscopic, microscopic, and tomographic characterization techniques to study biogeochemical interfaces in soil

• DOI: 10.1007/s11368-011-0417-5
• 发表时间: 2012-01-01
• 期刊: JOURNAL OF SOILS AND SEDIMENTS
• 影响因子: 3.6
• 作者: Rennert, Thilo;Totsche, Kai U.;Thieme, Juergen
• 通讯作者: Thieme, Juergen

Submicron scale imaging of soil organic matter dynamics using NanoSIMS – From single particles to intact aggregates

• DOI: 10.1016/j.orggeochem.2011.06.003
• 发表时间: 2012
• 期刊: Organic Geochemistry
• 影响因子: 3
• 作者: C. Mueller;A. Kölbl;Carmen Hoeschen;F. Hillion;K. Heister;A. Herrmann;I. Kögel‐Knabner