Laser Activated Membrane Introduction Mass Spectrometry (LAMIMS) For High Throughput Evaluation of Heterogeneous Catalysts

摘要

Laser activated membrane introduction mass spectrometry,a high throughput screening method,evaluates heterogeneous catalysts under realistic reactor conditions.It is a precise,versatile system requiring no moving parts.The catalyst array is supported on carbon paper overlaid upon a silicone rubber membrane configured in a variation of membrane introduction mass spectrometry as introduced by R.G.Cooks.The carbon paper serves as a heat dissipating gas diffusion layer that permits laser heating of catalyst samples far above the decomposition temperature of the polymer membrane that separates the array from the mass spectrometer vacuum chamber.