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Introduction	stands for Direct Analysis in Real Time. It is a new ionization for rapid, non-contact surface sampling of compounds. Operating at ambient pressure with the sample at ground potential, the source enables near instantaneous determination of sample composition by using mass spectrometry. Electronic or vibronic excited-state species generated in the source interact with reagent molecules and polar or non-polar analyte present near the inlet of the mass spectrometer.

Introduction

stands for Direct Analysis in Real Time. It is a new ionization for rapid, non-contact surface sampling of compounds. Operating at ambient pressure with the sample at ground potential, the source enables near instantaneous determination of sample composition by using mass spectrometry. Electronic or vibronic excited-state species generated in the source interact with reagent molecules and polar or non-polar analyte present near the inlet of the mass spectrometer.