Dear all,
We have a problem on our multiflow carbonates
Bitter  to introduce samples or references carbonates in vials, after
automatic injection of the acid, after a calibration in 70°C during 2 heurs
At the time of the analysis, there is no more CO2 in vials
The CO2 escapes in the stage of preparation at the time of the injection of
the acid 
When I injectele CO2 in vials manually and I waits for 2 heurs I discover
the CO2 
So there is no problem of leaks on vials
If you have to meet this problem, I waits you for proposition and diagnose

Issam