To remove H2S and CO2 from the feed gas to the scrubber in an amine system, lean amine solution is circulated to an absorber or scrubber. For decarbonization, it is important to monitor solvent quality because managing the fresh amine make-up rate is essential to achieve the desired CO2 capture efficiency at the lowest cost. Using Emerson Micro Motion density meters to infer rich or lean amine quality automates the solvent quality sampling process. This improves personnel safety by eliminating manual sampling and provides real-time monitoring of changes to the solvent quality.