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Volume 29 Issue 2
Mar 2018
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Xiu-Juan Bai, Hua-Ning Qiu, Wen-Gui Liu, Lian-Fu Mei. Automatic 40Ar/39Ar Dating Techniques Using Multicollector ARGUS Ⅵ Noble Gas Mass Spectrometer with Self-Made. Journal of Earth Science, 2018, 29(2): 408-415. doi: 10.1007/s12583-017-0948-9
Citation: Xiu-Juan Bai, Hua-Ning Qiu, Wen-Gui Liu, Lian-Fu Mei. Automatic 40Ar/39Ar Dating Techniques Using Multicollector ARGUS Ⅵ Noble Gas Mass Spectrometer with Self-Made. Journal of Earth Science, 2018, 29(2): 408-415. doi: 10.1007/s12583-017-0948-9

Automatic 40Ar/39Ar Dating Techniques Using Multicollector ARGUS Ⅵ Noble Gas Mass Spectrometer with Self-Made

doi: 10.1007/s12583-017-0948-9
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  • Corresponding author: Hua-Ning Qiu, huaning.qiu@gmail.com
  • Received Date: 15 Mar 2017
  • Accepted Date: 05 Aug 2017
  • Publish Date: 01 Apr 2018
  • A new fully automatic 40Ar/39Ar 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 CO2 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, CO2 laser and crusher through a PeriCon (peripheral controller). The experimental procedures of atmospheric argon analyses, 40Ar/39Ar dating by laser stepwise heating and by progressive crushing in vacuo, can be fully automatically performed. The weighted mean of atmospheric 40Ar/36Ar 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.

     

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