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

这项重大研究仪器（MRI）计划奖将支持在加州大学海洋分析实验室的海洋科学研究所，圣克鲁斯的研究和教学的现代三重四极电感耦合等离子体质谱仪（TQ-ICP-MS）和三个专用的样品处理和引入系统的收购。这套仪器将使教师，研究人员和学生能够进行新颖的多学科分析工作，这将有助于更好地了解地球，海洋和行星科学以及环境毒理学的各种过程。新设施将通过为本科生和研究生课程和研究背景下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桥梁计划（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前沿研究机会。 TQ-ICP-MS系统联合收割机将现代单四极杆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素干扰进行明确的化学和物理解析。三个专用的样品引入系统包括：（1）有机金属化合物的气相色谱形态分析（例如，（2）ESI prepFAST IC，用于环境毒理学研究的高通量金属形态分析（如As、Cr、Se）和总金属分析;以及（3）ESI seaFAST，用于海水中超痕量元素的自动分析。TQ-ICP-MS将与现有的Teledyne Analyte Excite激光烧蚀系统和Thermo Element XR高分辨率磁扇区ICP-MS集成。激光器可以与ICP-MS或两者一起操作，用于分离-该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准。

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.