Acquisition of a high performance liquid chromatograph for the enhancement of biogeochemical education and research of trace element speciation in environmental systems

1029246 johannesson该奖项为用于生物地球化学和微量元素研究和培训的高效液相色谱仪提供资金。高效液相色谱将与现有的nsf资助的磁性扇区ICP-MS相结合，用于高分辨率元素测量。主要的研究用途将是评估自然水体中微量元素的浓度和形态，以了解生物地球化学转化。氧化还原状态可以从环境样品中的物种分布推断出来。一个主要的研究主题将解决通过配体配合物的无机-有机相互作用。PIs地下水中的砷地球化学研究将立即受益。科学与工程学院、医学院和公共卫生与热带医学学院的研究人员将参与共享这些仪器。路易斯安那州泽维尔大学（Xavier University of Louisiana）是一所历史上的非裔美国人大学，有经常使用杜兰大学(Tulane？协调仪器设备（CIF）。他们将获得使用新仪器的权利。此次收购将在鼓励代表性不足的群体参与科学和工程领域方面发挥重要作用，通过路易斯安那州少数民族参与研究计划联盟以及PI？她通过纽科姆学院研究所（Newcomb College Institute）向从事科学的女性伸出援手。这将被纳入环境地球化学课程吗？包括调查当地水质问题的外展组成部分。该文书将被纳入到岸价。一个专职科学家维护这个实验室。工作人员将提供仪器的日常服务和维护。CIF资源的每小时成本结构（HR-ICP-MS）最初将用于成本回收。仪器时间将按照到岸价政策安排。PI和工作人员科学家将培训新用户。＊＊＊

1029246JohannessonThis award provides funding for a high performance liquid chromatograph for biogeoechmical and trace element research and training. The HPLC will be coupled with an existing NSF-funded magnetic sector ICP-MS for high-resolution elemental measurements. The main research use will be for assessing trace element concentrations and speciation in natural waters in order to understand biogeochemical transformations. The oxidation-reduction state will be able to be inferred from the speciation distribution in environmental samples. A principal research theme will address inorganic-organic interactions through ligand complexes. The PIs arsenic geochemistry studies in groundwater will immediately benefit. Researchers in the School of Science and Engineering, the School of Medicine, and the School of Public Health and Tropical Medicine will be engaged in sharing the instrumentation. Xavier University of Louisiana, a historically African American university, has scientists who routinely use Tulane?s coordinated instrumentation facility (CIF). They will given access to the new instrumentation. The acquisition will play an important role in encouraging the participation of under-represented groups in the areas of science and engineering through such programs as the Louisiana Alliance for Minority Participation in Research Program, as well as through the PI?s outreach to women in sciences through the Newcomb College Institute. The will be incorporated into environmental geochemistry coursework ? including an outreach component investigating local water quality issues. The instrument will be incorporated into the CIF. A full-time staff scientist maintains the laboratory. The staff scientist will provide routine instrument service and maintenance. Per hour cost structure for CIF resources (HR-ICP-MS) will be used initially for cost-recovery. Instrument time will be scheduled according to CIF policy. The PI and staff scientist will train new users. ***