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首页> 外文期刊>International journal of mass spectrometry >Development of an evolved gas-time-of-flight mass spectrometer for the Volatile Analysis by Pyrolysis of Regolith (VAPoR) instrument
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Development of an evolved gas-time-of-flight mass spectrometer for the Volatile Analysis by Pyrolysis of Regolith (VAPoR) instrument

机译：研制出一种改进的飞行时间质谱仪，用于通过Regolith热解仪（VAPoR）进行挥发性分析

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摘要

Low power, robust technologies are appealing for in situ planetary science throughout the Solar System. The VAPoR (Volatile Analysis by Pyrolysis of Regolith) instrument is under development toward studying soil composition, volatiles, and trapped noble gases in the polar regions of the Moon and on the surface of other airless bodies. VAPoR will ingest a soil sample and conduct analysis by pyrolysis and time-of-flight mass spectrometry (ToF-MS). Two components of the system have been characterized in parallel development: a field-tested sample heater design and a laboratory-based time-of-flight mass spectrometer that emphasizes reduced mass and power through the use of micro- and nanotechnology. The pyrolysis field unit, vacuum-coupled to a commercial residual gas analyzer, has been used in Hawaii to analyze Mauna Kea soils. Water was detected, as were key inorganic pyrolysis products, including CO_2 and SO_2, and organic volatiles, including methane, benzene, toluene, and various hydrocarbon fragments. In parallel development, a laboratory reflectron time-of-flight mass spectrometer has been designed, assembled, and tested using electron impact ionization from a carbon nanotube electron gun. Preliminary testing reveals a mass resolution of 270.
机译：低功率，强大的技术吸引了整个太阳系中的原位行星科学。正在开发VAPoR（通过Regolith的热解进行挥发性分析）仪器，以研究月球极性区域和其他无气物体表面上的土壤成分，挥发物和捕获的稀有气体。 VAPoR将摄入土壤样品并通过热解和飞行时间质谱（ToF-MS）进行分析。该系统的两个组件在并行开发中得到了表征：一个经过现场测试的样品加热器设计和一个基于实验室的飞行时间质谱仪，该质谱仪强调通过使用微米和纳米技术来降低质量和功耗。热解现场设备，真空耦合到商用残留气体分析仪，已在夏威夷用于分析冒纳凯阿河土壤。检测到水，以及关键的无机热解产物（包括CO_2和SO_2）以及有机挥发物（包括甲烷，苯，甲苯和各种碳氢化合物碎片）。在并行开发中，实验室反射式飞行时间质谱仪已使用来自碳纳米管电子枪的电子碰撞电离进行了设计，组装和测试。初步测试显示质量分辨率为270。

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