Acquisition of a Microwave Digestion System for Geochemical and Geochronological Applications

获取用于地球化学和地质年代学应用的微波消解系统

基本信息

批准号：
0549552
负责人：
Elisabeth Widom
金额：
$ 3.15万
依托单位：
Miami University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2006
资助国家：
美国
起止时间：
2006-02-15 至 2008-01-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0549552&HistoricalAwards=false
关键词：
Acquisition Microwave Digestion System Geochemical

项目摘要

0549552WidomThis project involves the acquisition of a microwave digestion system and the development of microwave sample preparation techniques for geochemical and geochronological applications. The microwave digestion system provides a safe, clean and efficient mechanism for digestion of diverse geologic materials for high precision trace element abundance and isotope ratio measurements, and allows for increased sample throughput afforded by substantially faster digestion and dry-down times. The microwave digestion system is particularly important as an alternative to Carius tube digestions for rhenium-osmium isotope and platinum group element studies, and as an alternative to teflon bomb digestions for dissolution of resistant phases (e.g. zircon, pyrochlore, spinel, chromite, fluorite) for trace element, uranium series disequilibria and samarium-neodymium geochronology studies. This equipment is used extensively in diverse on-going funded research projects involving Geology faculty and graduate and undergraduate students at Miami University. In addition, the microwave system is used for teaching in courses with lab-based exercises to train students in sample dissolution techniques and state-of-the-art analytical techniques including inductively coupled plasma mass spectrometry and thermal ionization mass spectrometry.

0549552WIDOMITHIS项目涉及获取微波消化系统以及用于地球化学和地球学应用的微波样品制备技术的开发。微波消化系统提供了一种安全，清洁和高效的机制，用于消化各种地质材料，以实现高精度的痕量元素丰度和同位素比的测量，并允许通过实质上更快的消化和干燥时间来增加样品吞吐量。 The microwave digestion system is particularly important as an alternative to Carius tube digestions for rhenium-osmium isotope and platinum group element studies, and as an alternative to teflon bomb digestions for dissolution of resistant phases (e.g. zircon, pyrochlore, spinel, chromite, fluorite) for trace element, uranium series disequilibria and samarium-neodymium geochronology studies.该设备广泛用于涉及迈阿密大学地质教师以及研究生和本科生的各种持续资助的研究项目。此外，微波系统用于在基于实验室的练习的课程中进行教学，以培训学生采用样本溶解技术和最先进的分析技术，包括电感耦合的血浆质谱法和热电离质谱法。