This application note describes how the efficiency of a MHE workflow can be significantly improved for MHE-SIFT-MS due to the stability of the technique. Formaldehyde impurity is analyzed easily and quantitatively in Gelucire excipient with this improved approach. The time-to-result is reduced to 85 minutes for this system – six-fold faster than the conventional MHE-SIFT-MS approach. Quantitative analysis is achieved at the throughput of 220 samples/day.