Volcanic Gases Analysis

Analyzer Description

5-valves, 2-packed columns, 2-micropacked columns, 2-capillary columns, methanizer, TCD, TCD, FID, injector oven, nitrogen purge, custom low pressure sampling system
Sample type:
Volcanic gas, prepared as per journal article: “The Magmatic and Hydrothermal Dominated Fumarolic System at the Active Crator of Lascar Volcano, Northern Chile”
Compounds Separated:
Helium, hydrogen, carbon dioxide, argon, oxygen, nitrogen, methane, carbon monoxide
Concentration Range:
50 ppm – 20% for helium and hydrogen
200 ppm – 100% for carbon dioxide and nitrogen
200 ppm – 0.2% for argon and oxygen
200 ppm – 50% for methane
0.5 ppm – 5% for carbon monoxide
Methods met:
F. Tassi, F. Aguilera, O. Vaselli, E. Medina, D. Tedesco, A. Delgado Huertas, ..S. Kojima (2009). The magmatic- and hydrothermal-dominated fumarolic system at the Active Crater of Lascar Volcano, Northern Chile. Bull Volcanol 71:171-183

Wasson-ECE W4376, W4365

Typical Chromatogram

FID Chromatogram

TCD Chromatogram

TCD Chromatogram

Key Features and Benefits

  • Sample loops are purged with nitrogen between analyses.
  • Argon and oxygen separation is achieved without cryogenics.
  • A vacuum gauge allows for direct measurement of sample loop pressure for a more accurate calculation of moles injected.