Development of Adaptable Cell LA-ICP-MS and Support for External Collaborations in the Elemental Analysis Facility at The Field Museum

开发适应性单元 LA-ICP-MS 并支持菲尔德博物馆元素分析设施的外部合作

• 批准号: 0818401
• 负责人: Laure Dussubieux
• 金额: $ 17.73万
• 依托单位: Field Museum of Natural History
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0818401&HistoricalAwards=false
• 关键词: Development; Adaptable; Cell; LA; ICP

With support from the National Science Foundation, Drs. Laure Dussubieux and Ryan Williams of the Elemental Analysis Facility at the Field Museum will expand the services of the laboratories to a wide range of archaeological scholars. The facility includes a scanning electron microscope with an energy dispersive spectrometer (SEM-EDS), and an inductively coupled plasma mass spectrometer (ICP-MS). The ICP-MS can be fitted with two lasers. One of the lasers is dedicated to the sampling of small objects with a high throughput, whereas the second laser, a totally unique, custom-transformed apparatus, accommodates large objects. This equipment was complemented by the recent acquisition of two portable XRF instruments for totally non-invasive investigations of artifacts on the premises of the Museum or in the field. The facility is used to determine the composition, including major, minor, and trace elements, of a large range of materials in a non-destructive manner to address questions related to the archaeology of cultural production, interaction and exchange in the Americas, Africa, Oceania, Europe, and Asia and advancing the cause of material conservation of The Field Museums reknowned anthropology collections.The elemental analysis facility serves the Field Museum community as well as scholars and students from the Chicago area, the Midwest and throughout the world. This project will develop our interaction with outside scientists to attract high profile collaborative projects by offering financial support to offset travel and accommodation expenses as well as a subvention of analytical costs. The laboratory provides a unique training opportunity for students. They are initiated into the analytical process by undertaking the analysis itself and are trained in method development, the statistical processing of the data, and interpretation. The acquisition of a laser system with an adaptable cell will extend the range of artifacts possible to analyze to whole specimens and reduce the risk of biased samples that a selection of only small objects could introduce. The presence of an on-site laboratory at the Field Museum creates the opportunity to study artifacts from the unique collections of the museum that could not be moved easily to outside analytical facilities. The intellectual merits of the project include the establishment of extensive new datasets of archaeological and ethnological material from around the world that directly informs hypotheses about ancient trade and exchange, technology, and their relationship to the development of social complexity around the world. By sharing our expertise for the investigation of ancient material and linking leading scholars and graduate students to the museums extensive collections and giving them the tools to analyze these one of a kind assemblages, the project will significantly enhance understanding of the role of cultural production in the development of complex societies.The broader impacts of the research include student training and public education. This project integrates research and training of undergraduate and graduate students. Results of this research will inform future exhibits and education activities of the institution, which educate hundreds of thousands of school children and millions of visitors annually. We will focus our efforts in developing the use of laser ablation ICP-MS to investigate new materials and new issues as long as it helps us addressing important questions related to cultural and technological interaction and exchange.

在国家科学基金会的支持下，博士。菲尔德博物馆元素分析设施的 Laure Dussubieux 和 Ryan Williams 将把实验室的服务范围扩大到广大考古学者。该设施包括一台带能量色散光谱仪 (SEM-EDS) 的扫描电子显微镜和一台电感耦合等离子体质谱仪 (ICP-MS)。 ICP-MS 可配备两个激光器。其中一个激光器专用于高通量对小物体进行采样，而第二个激光器是一种完全独特的定制改造设备，可容纳大型物体。最近购买的两台便携式 XRF 仪器对该设备进行了补充，用于对博物馆内或现场的文物进行完全非侵入性的研究。该设施用于以非破坏性方式测定大量材料的成分，包括主要元素、次要元素和微量元素，以解决与美洲、非洲、大洋洲、欧洲和亚洲以及推动菲尔德博物馆物质保护事业的人类学藏品享有盛誉。元素分析设施为菲尔德博物馆社区以及来自芝加哥地区、中西部和世界各地的学者和学生提供服务。该项目将发展我们与外部科学家的互动，通过提供财政支持来抵消旅行和住宿费用以及分析成本的补贴，以吸引引人注目的合作项目。该实验室为学生提供了独特的培训机会。他们通过进行分析本身开始进入分析过程，并接受方法开发、数据统计处理和解释方面的培训。具有适应性单元的激光系统的采集将扩展可能分析的工件范围至整个样本，并降低仅选择小物体可能引入的有偏差样本的风险。菲尔德博物馆设有现场实验室，为研究博物馆独特藏品中的文物创造了机会，这些文物无法轻易转移到外部分析设施。该项目的智力优点包括建立了来自世界各地的考古和民族学材料的广泛新数据集，这些数据集直接为有关古代贸易和交换、技术及其与世界各地社会复杂性发展的关系的假设提供了信息。通过分享我们在古代材料调查方面的专业知识，将顶尖学者和研究生与博物馆的广泛藏品联系起来，并为他们提供分析这些独一无二的组合的工具，该项目将显着增强对文化生产在古代材料中的作用的理解。复杂社会的发展。该研究的更广泛影响包括学生培训和公共教育。 该项目集本科生和研究生的研究和培训于一体。 这项研究的结果将为该机构未来的展览和教育活动提供信息，该机构每年为数十万学童和数百万游客提供教育。我们将重点致力于开发利用激光烧蚀ICP-MS来研究新材料和新问题，只要它有助于我们解决与文化和技术互动和交流相关的重要问题。