Abstract
In this study we explore the use of collision cross
section distributions to allow comparability of IM-MS data for proteins on
different instruments. We present measurements on seven standard proteins
across three IM-MS configurations, namely an Agilent 6560 IM QToF, a Waters
Synapt G2 possessing a TWIMS cell and a modified Synapt G2 possessing an RF
confining linear field drift cell. Mobility measurements were taken using both
He and N2 as the drift gases.
To aid comparability across instruments and best assess the
corresponding gas-phase conformational landscapes of the protein ‘standards’ we
present the data in the form of averaged collision cross section distributions.
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TWIMS CCS Calibration plots