How to avoid Glycine losses in a GV dual activated solution for Carbondioxide absorption?

I am currently working on improving Efficiency for CO2 absorption of a process plant. Dual activated GV solution (K2CO3+Glycine+DEA) system is used for CO2 absorption. It is observerd that Glycine losses are significant inspite of its low volatility and high stability towards oxidation. What can be possible reason for Glycine loss and how can we avoid it?