Imaging mass spectrometry using physical vapor deposition of platinum nanoparticles

摘要

The present invention is an imaging mass spectrometry method using a matrix for supporting ionization of a sample, which has high ionization efficiency, suppresses migration and reduction of visual information, has no interference peak derived from the matrix, and has high spatial resolution. The present invention provides an improved imaging mass spectrometry method that can be analyzed by the above method. Specifically, the present invention provides an imaging mass spectrometry method using a sample prepared by physical vapor deposition of platinum nanoparticles on the surface of a sample subjected to imaging mass spectrometry.