[en] The objective of this project is to develop and evaluate ion induced desorption mass spectrometry for microscopic analysis. Briefly, the interaction of a microbeam (1-50μm diameter) of high energy heavy ions (84 MeV Kr⁺⁷) with the target surface desorbs and ionizes atoms and molecules. The desorbed ions are analyzed via time-of-flight mass spectrometry to determine the composition of the area addressed with the microbeam. An account of recent work is summarized