Abstract

This chapter discusses the development of interfaces used to introduce dynamic samples to mass spectrometers for analysis with temporal resolutions that are adequate for the processes. Interfacing is vital for the operation of time-resolved mass spectrometry (TRMS), and it influences the quality of analysis output. The chapter provides examples of various TRMS systems emphasizing the role of interfaces. The most common interfaces used in TRMS incorporate the ion sources such as electrospray ionization (ESI), desorption electrospray ionization (DESI), Venturi easy ambient spray ionization (V-EASI), electron ionization (EI), and photoionization. ESI-MS and DESI-MS systems are very popular, and they may certainly dominate future applications focused on the monitoring of liquidphase processes. In some cases, the reaction chambers are highly integrated with the ion sources. Mixers and micromixers lead to the formation of spatial concentration gradients of reaction intermediates and products.

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