Research Chemist, Stable Isotope Laboratory
Reston, VA 20192
|From:||"[log in to unmask]" <[log in to unmask]>|
|To:||[log in to unmask]|
|Date:||05/07/2011 07:59 PM|
|Subject:||carbonate reaction temprature for GasBench|
|Sent by:||Stable Isotope Geochemistry <[log in to unmask]>|
Most labs react carbonates (calcite) with phosphoric acid at 25 C for 24 hours to run them on the GasBench.
If I remember correct while running Kiel Carbonate device the temperature for reaction was 70 C and the reaction time was around 40 (?) minutes. Is there any reason that will affect the isotope values if I react calcite for GasBench for an hour at 70 C and running them right away?