PNNL

Abstract

Ion mobility separations coupled to mass spectrometry (IM-MS) have received much attention for their ability to provide complementary structural information to solution-phase-based separations, as well as to aid in the identification of unknown compounds. While IM-MS is an increasingly powerful analytical technique, significant bottlenecks related to the resolution and sensitivity of measurements have kept it from becoming broadly applied for biological analyses. Structures for Lossless Ion Manipulations (SLIM)-based IM separations have successfully overcome these aforementioned bottlenecks, addressing issues associated with resolution and sensitivity in the omics, and potentially opening the door to broader application.