Dear List members.
I have been sending hyper saline water samples for deuterium and oxygen-18
analysis. The lab uses pyrolisis method (Finnigan Delta Plus XL ion ratio
mass spectrometer and Thermochemical Conversion Elemental Analyzer (TC/EA)
peripheral to analysis these samples. I have been using these results after
correcting for the salt effect.
Lately, I was told that measurements are usually difficult in hypersaline
sample because of the saturation of salts is attained and therefore the
isotopic effects become more complex as the exchange rate between CO2 and
water slow down considerably.
I'm bit confused, can someone explain to me how the pyrolisis method work on
Thanks in advance for any help.