Portable, low-cost carbon dioxide isotope analyzer for field-based earth science applications

适用于现场地球科学应用的便携式低成本二氧化碳同位素分析仪

• 批准号: 390991-2010
• 负责人: Stix, John
• 金额: $ 5.28万
• 依托单位: McGill 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: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=443344
• 关键词: Portable; low; cost; carbon; dioxide

Recent advances in Cavity Ring-Down Spectroscopy (CRDS) have produced a robust, field-portable (<30 kg) instrument that is one-tenth the cost of a typical IRMS, yet produces 13C/12C measurements that are just as precise. Because of their low cost, field readiness, ease of operation, and ability to make measurements in real time at fine temporal resolution, these instruments are poised to cause a revolutionary advance in isotope science. This RTI proposal requests funds for a field-portable CRDS system. The analytical engine of the system will be a Cavity Ring-Down Spectrometer designed to measure 13C/12C values in CO2 gas and equipped with a multi-use inlet manifold. Our goal is to make the maximum scientific impact with this remarkable device. We will achieve this objective in three ways. (1) The instrument will be used 24/7 for 365 days each year. (2) The user group is highly experienced, with each individual having large groups of postdocs, graduate students, and undergraduates. (3) Our applications are deliberately diverse, ranging from solid earth problems, through environmental and climate changes issues, to astrobiology and early Earth challenges. This instrument will have a major impact on our respective research programs.

空腔衰荡光谱（CRDS）的最新进展已经产生了一种坚固耐用的现场便携式（<30公斤）仪器，其成本仅为典型IRMS的十分之一，但可以产生同样精确的13C/12C测量。由于其成本低，现场准备就绪，易于操作，并且能够以精细的时间分辨率进行实时测量，这些仪器准备在同位素科学中引起革命性的进步。该RTI提案要求为现场便携式CRDS系统提供资金。该系统的分析引擎将是一个空腔衰落光谱仪，设计用于测量二氧化碳气体中的13C/12C值，并配备一个多用途进气歧管。我们的目标是用这个非凡的设备产生最大的科学影响。我们将通过三种方式实现这一目标。(1)仪器全年365天全天候使用。(2)用户群经验丰富，每个用户群都有大量博士后、研究生和本科生。(3)我们的应用是有意多样化的，从固体地球问题，到环境和气候变化问题，再到天体生物学和早期地球挑战。这台仪器将对我们各自的研究项目产生重大影响。