> Details

Mulder, Ines [Author]; Huber, Stefan G. [Author]; Krause, Torsten [Author]; Zetzsch, Cornelius [Author]; Kotte, Karsten [Author]; Dultz, Stefan [Author]; Schöler, Heinz F. [Author]

A new purge and trap headspace technique to analyze low volatile compounds from fluid inclusions of rocks and minerals - [published Version]

Reference
management

Bookmarks

Remove from
bookmarks

Share this on Whatsapp

Close

Bookmarks



You can manage bookmarks using lists, please log in to your user account for this.
  • Media type: E-Article; Text
  • Title: A new purge and trap headspace technique to analyze low volatile compounds from fluid inclusions of rocks and minerals
  • Contributor: Mulder, Ines [Author]; Huber, Stefan G. [Author]; Krause, Torsten [Author]; Zetzsch, Cornelius [Author]; Kotte, Karsten [Author]; Dultz, Stefan [Author]; Schöler, Heinz F. [Author]
  • imprint: Amsterdam : Elsevier, 2013
  • Published in: Chemical Geology 358 (2013)
  • Issue: published Version
  • Language: English
  • DOI: https://doi.org/10.15488/1339; https://doi.org/10.1016/j.chemgeo.2013.09.003
  • ISSN: 0009-2541
  • Keywords: Methyl chloride ; carbon ; Hardness ; halite ; heating ; Sulfur hexafluoride ; Tubular steel structures ; Fluid inclusion ; Quantitative determinations ; concentration (composition) ; Liquid nitrogen ; Mineral grinding ; Sample preconcentration ; sulfur ; trace gas ; Carbon tetrafluoride ; Methyl chlorides ; Chlorine compounds ; Fluid inclusions ; Grinding (machining) ; Quartz ; Desorption ; gas flow ; Headspace technique ; [...]
  • Origination:
  • Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Description: A new method for the analysis of trace gases from fluid inclusions of minerals has been developed. The purge and trap GC-MS system is based on the system described by Nolting et al. (1988) and was optimized for the analyses of halogenated volatile organic compounds (VOCs) having boiling points as low as -128. °C (carbon tetrafluoride).The sample preconcentration cold trap consists of a U-shaped glass lined steel tube (GLT™), that is immersed into a small liquid nitrogen Dewar vessel for cooling. A rapid desorption step heats up the preconcentration tube in <30s from -196°C to 200°C. The process is carried out by using a pressurized air stream to dissipate the liquid nitrogen followed by resistive heating of the trap. The design of the cold trap and the direct transfer of desorbed analytes onto the GC column via a deactivated capillary column retention gap made sample refocusing within the GC oven unnecessary. Furthermore, a special air-tight grinding device was developed in which samples ranging from soft halite (hardness 2, Mohs scale) to hard quartz (hardness 7) are effectively ground to average diameters of 1000nm or below, thereby releasing gases from fluid inclusions of minerals. The gases are then purged from the grinding chamber with a He carrier gas flow. The detection and quantitative determination of gases, such as SF6 and CF4 released from fluorites and CH3Cl from halite samples is demonstrated. ; DFG/FOR/763
  • Access State: Open Access
  • Rights information: Attribution (CC BY)