Reaction cell/collisional ICP-MS for trace element mineral chemistry in ore systems

用于矿石系统中微量元素矿物化学的反应池/碰撞 ICP-MS

• 批准号: 345324-2007
• 负责人: LaytonMatthews, Daniel
• 金额: $ 10.93万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2006
• 资助国家: 加拿大
• 起止时间: 2006-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=325717
• 关键词: Reaction; cell; collisional; ICP; MS

Virtually any type of natural or synthetic sample can be introduced into the plasma of an Inductively coupled plasma mass spectroscopy (ICP-MS) and the chemical composition determined using the abundance of the isotopes of elements ionized in a plasma. ICP-MS now plays an essential role in many geological studies of Earth and planetary systems for the provision of elemental and isotopic data.  These data provide a means to understand rocks in a variety of geological environments, which include the formation of ore deposits (i.e., mining and mineral exploration), environmental monitoring (i.e, water quality and mine tailings) and fluid-rock interactions (i.e., aquifers, petroleum, soils). The ICP-MS offers many advantages over other instrumental techniques used in geological studies as it allows the elemental analysis of gases, liquids, or solids.  In addition to flexible sampling capabilities, very low detection limits (parts per trillion -ppt) can be attained for most elements with ICP-MS. There are factors inherent in instrument design, however that preclude the routine analysis of several elements important in geological research. The instrument in this proposal uses a new design to allow the routine analysis of almost all elements important in geological research, which were not measurable in previous instruments. Without this system, our current analytical facilities cannot meet our research goals.   This instrument will allow us to establish the spatial and temporal variations, the possible source minerals for the ore-forming systems, and the trace signature of the typical mineralizing systems, leading to the interpretation of the mechanisms of ore formation. This instrument will provide information that will be essential in collaborative projects involving new exploration techniques for future base metal mineral deposits. Our philosophy in the lab is that all researchers do their own analyses with direction from our lab manager.  Consequently, all the researchers involved in our projects will be trained in the use of the proposed reaction cell/collisional ICP-MS, thereby remaining current in analytical geochemical techniques.

几乎可以将任何类型的天然或合成样品引入电感耦合等离子体质谱（ICP-MS）的等离子体中，并使用在等离子体中电离的元件的同位素抽象确定的化学成分。 ICP-MS现在在提供元素和同位素数据的地球和行星系统的许多地质研究中起着至关重要的作用。这些数据提供了一种理解各种地质环境中的岩石的方法，其中包括形成矿石沉积物（即采矿和矿物勘探），环境监测（即水质和矿山尾矿）以及液体岩石相互作用（即含水剂，石油，石油，土壤）。与地质研究中使用的其他工具技术相比，ICP-MS具有许多优势，因为它允许对气体，液体或固体进行元素分析。除了柔性抽样功能外，对于大多数ICP -MS，还可以将非常低的检测极限（每万亿-PPT零件）附加。仪器设计中有一些因素，但是排除了对地质研究中重要的几个元素的常规分析。该提案中的仪器使用新的设计来允许对地质研究中重要的所有元素进行常规分析，而这些元素在以前的仪器中无法测量。没有这个系统，我们当前的分析设施将无法实现我们的研究目标。  该仪器将使我们能够建立空间和临时变化，矿石形成系统的可能源矿物以及典型的矿化系统的痕量签名，从而解释了矿石形成机制的解释。该仪器将提供有关协作项目至关重要的信息，涉及未来碱金属矿藏的新探索技术。我们在实验室中的理念是，所有研究人员都通过我们的实验室经理进行了自己的分析。因此，所有参与我们项目的研究人员都将接受培训，以使用提出的反应细胞/碰撞ICP-MS，从而在分析地球化学技术中仍然存在电流。