MRI: Acquisition of a triple-quadrupole ICP-MS and sample introduction hardware for multidisciplinary research and teaching

该重大研究仪器 (MRI) 计划奖项将支持购买一台现代三重四极杆电感耦合等离子体质谱仪 (TQ-ICP-MS) 和三个专用样品处理和引入系统，用于加州大学圣克鲁斯分校海洋科学研究所海洋分析实验室的研究和教学。这套仪器将使教师、研究人员和学生能够开展新颖的多学科分析工作，从而有助于更深入地了解地球、海洋和行星科学以及环境毒理学的不同过程。新设施将通过为本科生和研究生课程作业和研究中的实践培训提供最先进的仪器，扩大校园对学生社会流动性和增加 STEM 多样性的承诺。实验室 PI 积极参与 AGU Bridge 计划（海洋科学）、NSF-ICER GEOPAths - IMPACT（地球和行星科学）和 UCSC STEM 多样性计划，为代表性不足的学生提供尖端研究机会。 TQ-ICP-MS 系统将现代单四极杆 ICP-MS 的灵敏度、扫描速度和动态范围与四极杆 - 反应池 - 四极杆配置相结合，能够对许多最具挑战性的同量异位干扰物进行明确的化学和物理分辨率。三个专用样品引入系统包括：（1）海洋和陆地环境中有机金属（例如汞）的气相色谱形态分析； (2) ESI prepFAST IC，用于环境毒理学研究的高通量金属形态（例如 As、Cr、Se）和总金属分析； (3) ESI seaFAST，用于自动分析海水中的超痕量元素。 TQ-ICP-MS 将与现有的 Teledyne Analyte Excite 激光烧蚀系统和 Thermo Element XR 高分辨率扇形磁 ICP-MS 集成。该激光器可与 ICP-MS 或两者一起使用，对地质和陨石材料进行分流分析，以进行地球化学和岩石年代学研究。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。

This Major Research Instrumentation (MRI) program award will support the acquisition of a modern triple-quadrupole inductively coupled plasma mass spectrometer (TQ-ICP-MS) and three dedicated sample processing and introduction systems for research and teaching in the Institute of Marine Science’s Marine Analytical Laboratory at the University of California, Santa Cruz. This suite of instruments will enable novel multidisciplinary analytical work by faculty, researchers, and students that will contribute to a more refined understanding of diverse processes in Earth, ocean, and planetary sciences, and environmental toxicology. The new facility will amplify the campus commitment to student social mobility and increased diversity in STEM by providing state-of-the-art instrumentation for practical training in the context of undergraduate and graduate coursework and research. Laboratory PIs actively engage with the AGU Bridge program (Ocean Sciences), NSF-ICER GEOPAths - IMPACT (Earth and Planetary Sciences), and the UCSC STEM Diversity Program, which fund cutting-edge research opportunities for underrepresented students. TQ-ICP-MS systems combine the sensitivity, scan speed, and dynamic range of modern single quadrupole ICP-MS with a quadrupole - reaction cell - quadrupole configuration that enables unambiguous chemical and physical resolution of many of the most challenging isobaric interferences. The three dedicated sample introductions systems include: (1) a gas chromatograph speciation analysis of organometallics (e.g., Hg) in the marine and terrestrial environments; (2) an ESI prepFAST IC for high-throughput metal speciation (e.g. As, Cr, Se) and total metal analysis for environmental toxicology research; and (3) an ESI seaFAST for automated analysis of ultra-trace elements in seawater. The TQ-ICP-MS will be integrated with an existing Teledyne Analyte Excite laser ablation system and Thermo Element XR high-resolution magnetic sector ICP-MS. The laser can be operated with either ICP-MS or with both for split-stream analysis of geological and meteoritic materials for geochemical and petrochronologic research.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.