摘要:稀有气体是地学研究的重要手段之一，在研究成矿流体来源、壳幔相互作用过程中具有重要的研究意义，其组成及同位素比值是研究天体和地质体来源、成岩机理及各种地质和物理化学过程的关键，可作为地球化学示踪剂。如何有效地在大气圈、水圈和岩石圈进行稀有气体同位素样品的提取，是气体同位素研究急需解决的基础科学问题，所以气体采样容器和取样技术显得尤为重要。本文在文献调研的基础上，对常见的采样容器的优缺点进行对比，并总结了不同采样容器对稀有气体取样的优劣性。常见的气体采集容器包括不锈钢瓶、铜管、玻璃瓶、气体采样袋、注射器等，而稀有气体的采集容器常为不锈钢瓶和铜管等；通过对比表明不锈钢瓶具有耐高温、耐高压、抗强腐蚀、不易燃、不易爆等特点和优越性，在气体样品采集和运输过程中稳定性最好，实验效果也最好；铜管采样效果和密封性好，但操作较为复杂；玻璃采样容器效果次之；石英玻璃瓶虽然操作简便，但是运输保存不便；气体采样袋和注射器的采集和运输储存效果较差。因此建议稀有气体样品采集使用不锈钢瓶和铜管以及钠钙材质的玻璃瓶，不建议将石英材质玻璃容器以及注射器和气袋作为稀有气体的采样工具。该工作可为气体地球化学的研究提供新的参考。
关键词: 稀有气体/
采样容器/
取样方法/
不锈钢瓶/
铜管
Abstract:Noble gas is one of the important means of geoscience research and plays an important role in tracing the source of ore-forming fluids and the interaction of crust-mantle. The composition and isotopic ratios of noble gas is the key to the study of the source of celestial bodies and geological bodies, diagenetic mechanism, and various geological and physico-chemical processes, and can be used as geochemical tracers. How to effectively extract gas isotopes from samples in the atmosphere, hydrosphere and lithosphere is a fundamental scientific problem that urgently needed to be solved in the study of noble gas isotopes, so the gas sampling container and sampling technology are particularly important. On the basis of literature research, the common sampling containers are summarized and compared, and the noble gas sampling methods are briefly described. Generally, common gas acquisition devices include stainless steel bottles, copper tubes, glass bottles, gas sampling bags, syringes, and other devices, while rare gas acquisition containers are often stainless steel bottles and copper tubes, etc.; The comparison shows that the stainless steel bottle has the characteristics and advantages of high temperature resistance, high pressure resistance, strong corrosion resistance, non-flammability and non-explosion, and has the best stability and experimental effect in the process of gas sample collection and transportation. Copper tube sampling effect and good sealing, but the operation is more complex; Glass collection container effect is the second; Although the quartz glass bottle is easy to operate, it is inconvenient to transport and preserve. The collection, transportation, and storage effect of gas sampling bags and syringes are poor. Therefore, stainless steel bottles, copper tubes, and sodium-calcium glass bottles are recommended for collecting noble gas samples, while quartz glass containers, syringes, and airbags are not recommended for collecting noble gas samples. This work can provide a new reference for gas geochemical research.
Key words:Noble gas/
Gas sampling vessels/
Sampling methods/
Stainless-steel bottles/
Copper tubes
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