This is the conventional BrF5 extraction
line used to prepare silicate and oxide samples for oxygen isotope analysis.
Samples are reacted with BrF5 for up to 12 hours in
nickel reaction vessels at temperatures up 600 C. Oxygen is extracted
as O2 gas, which is then converted to CO2
gas by reaction with a hot graphite rod. The CO2
sample is then analyzed using the dual inlet mass spectrometer.