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.

事实上，任何类型的天然或合成样品都可以引入电感耦合等离子体质谱 (ICP-MS) 的等离子体中，并且使用等离子体中电离的元素同位素丰度确定化学成分现在起着重要作用。在地球和行星系统的许多地质研究中提供元素和同位素数据方面发挥着重要作用。​这些数据提供了一种了解各种地质环境中岩石的方法，其中包括矿床的形成ICP-MS 与地质研究中使用的其他仪器技术相比具有许多优势。因为它可以对气体、液体或固体进行元素分析。除了灵活的采样功能外，大多数元素都可以获得非常低的检测限（万亿分之几 -ppt） ICP-MS。然而，仪器设计中存在一些固有的因素，妨碍了对地质研究中重要的几种元素的常规分析。该提案中的仪器采用了新的设计，可以对地质研究中的几乎所有重要元素进行常规分析。以前的仪器无法测量。如果没有这个系统，我们当前的分析设施就无法满足我们的研究目标。​该仪器将使我们能够确定成矿系统的空间和时间变化、可能的来源矿物以及痕量特征。典型矿化该仪器将提供对于涉及未来贱金属矿床新勘探技术的合作项目至关重要的信息，我们在实验室的理念是所有研究人员都进行自己的分析。我们的实验室经理的指导。因此，参与我们项目的所有研究人员都将接受使用所提议的反应池/碰撞 ICP-MS 的培训，从而保持分析地球化学技术的最新状态。