Automatic ^(40)Ar/^(39)Ar Dating Techniques Using Multicollector ARGUS VI Noble Gas Mass Spectrometer with Self-Made Peripheral Apparatus

查看全文 作　　者：Xiu-Juan [1]Bai;Hua-Ning [1,2]Qiu;Wen-Gui [3]Liu;Lian-Fu [1]Mei

机构地区：[1]Key Laboratory of Tectonics and Petroleum Resources, Ministry of Education, China University of Geosciences;[2]State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences;[3]State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences

出　　处：《Journal of Earth Science》索引2018年第29卷第2期,共8页

基　　金：financially supported by the National Natural Science Foundation of China (Nos. 41503053, 41630315, 41688103, and 91128203) 摘　　要：A new fully automatic ^(40)Ar/^(39)Ar laboratory with a Thermo Scientific~? ARGUS Ⅵ mass spectrometer has been established in China University of Geosciences(Wuhan). We designed and developed a mini efficient preparation system(80 mL), a CO_2 laser for heating samples, a crusher for extracting fluid inclusions within K-poor minerals and an air reservoir(31 L) and pipette(0.1 mL) system. The ARGUS Ⅵ mass spectrometer is operated by the Qtegra Noble Gas software, which can control the peripheral accessories, such as pneumatic valves, CO_2 laser and crusher through a PeriCon(peripheral controller). The experimental procedures of atmospheric argon analyses, ^(40) Ar/^(39)Ar dating by laser stepwise heating and by progressive crushing in vacuo, can be fully automatically performed. The weighted mean of atmospheric ^(40)Ar/^(36)Ar ratios is 302.22±0.03(1σ, MSWD=0.74, n=200), indicating that air reservoir and pipette system and the whole instrument system are very stable. This laboratory is a successful pioneer example in China to establish a new noble gas laboratory with self-made peripheral accessories expect for the mass spectrometer. 关键词：^40AR 分光计气体巨人仪器外设技术地球科学

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Automatic ^(40)Ar/^(39)Ar Dating Techniques Using Multicollector ARGUS VI Noble Gas Mass Spectrometer with Self-Made Peripheral Apparatus

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